It's Tuesday morning, and I'm staring at my screen through the familiar haze of a 720p Zoom camera. The marketing director I'm speaking with runs a successful maintenance company, and his passion for the business radiates even through our pixelated connection.
We're having a fact-finding chat, and an introduction to see if Mumble, our creative marketing agency, could support his business. As we discuss his challenges, he mentions something that gives me pause for thought.
"The problem is," he says, leaning forward slightly," people don't care about percentages. They want to know the real value—what it actually means for them."
He explains how his team tells prospects they “could save up to30%" on maintenance costs, but it never seems to land. The conversation often stalls there, with prospects unsure whether the savings justify the switch.
I listen in silence, sucking on the end of my pen as I contemplate his predicament. Something clicks. The pen clicks. I scribble a note in the margin of my page and tell the director I will contact him in a few days.
I'm off to talk to our best web developer about the possibility of a bespoke digital calculator.
The Problem With Percentages
After that call, I couldn't stop thinking about his insight. The more I considered it, the more obvious it became: percentages are the enemy of conversion.
Here's why they fail:
Unrealised Value: "Save up to 30%" tells someone nothing about their specific situation. A business spending £1,000 annually might save £300, while one spending £100,000 could save £30,000. The percentage obscures the real impact.
Abstract Numbers: Our brains struggle with abstract concepts. We're wired to understand concrete, tangible benefits. "£8,847 annual savings" is far more compelling than "significant cost reductions."
Too Many Variables: Every business is different in terms of size, usage patterns, current spending and industry requirements. A flat percentage can't account for these nuances, leaving prospects to guess where they might fit.
Marketing Language Mistrust: Phrases like "up to X%" have been so overused that they trigger scepticism. People assume they'll get less than the maximum figure, often significantly less.
When prospects can't visualise the specific benefit, they default to "maybe" instead of "yes."
The Solution: Bespoke Digital Calculators
A bespoke digital calculator is any custom interactive tool where users input their specific variables to reveal personalised information: costs, savings, ROI, or other benefits relevant to their situation.
Instead of telling the maintenance company's prospects they could "save up to 30%," imagine if they could visit a calculator, input their current spending, facility size, and service frequency, then immediately see: "Based on your requirements, you would save £8,847 annually and reduce downtime by 15 hours per month."
That's the difference between abstract possibilities and concrete reality.
At Mumble, this represented a new service area. While we've always been a creative marketing agency focused on design and digital solutions, our unique skillset meant we could develop custom interactive tools, something beyond the reach of typical digital marketing agencies focused solely on being social media monkeys.
Why Bespoke Calculators Transform Businesses
Something to Shout About
A custom calculator gives you a genuine competitive advantage. While competitors rely on generic marketing materials, you're offering prospects a personalised experience that demonstrates value before they even speak to you.
The Psychology of Interaction
There's profound psychology at play here. When someone observes information passively, it creates mild interest. When they interact with it(inputting their data, adjusting variables, seeing results change in real-time), they become invested. They're no longer considering your service; they're experiencing it.
Digital Engagement Hub
Your calculator becomes a destination. Instead of prospects bouncing off your website after scanning a few generic pages, they spend meaningful time inputting data and exploring results. This engagement signals quality to search engines and keeps your business top-of-mind.
SEO and Search Optimisation
People actively search for calculators in your industry. "Maintenance cost calculator," "facility management ROI tool," "service comparison calculator." These searches represent high-intent prospects. When your calculator ranks for these terms, you're capturing demand at the perfect moment.
Elevated Professionalism
A well-designed calculator immediately elevates your brand's perceived professionalism. It signals that you're innovative, customer-focused, and confident enough in your value proposition to let prospects see the numbers themselves.
Answers Without Enquiry
Many prospects want information but aren't ready to speak with sales. Your calculator serves these researchers, providing value while capturing their details for future follow-up. It's patient qualification, separating genuine prospects from casual browsers.
Trade Shows and Meetings
Beyond online applications, calculators become powerful sales tools for face-to-face interactions. Instead of making broad claims at trade shows or client meetings, you can demonstrate specific value in real-time using a tabletop laptop.
Making It Real
That maintenance company director was right. People don't care about percentages. They care about pounds, hours saved, and problems solved. A bespoke calculator transforms abstract marketing claims into personalised, compelling realities.
As creative marketers at Mumble, we're uniquely positioned to bridge this gap. We understand both the marketing psychology and the technical execution needed to create tools that genuinely convert.
The question isn't whether your prospects want to see their specific benefits—they absolutely do. The question is whether you're ready to show them.
Mumble is a creative marketing agency designed for success. If you're interested in exploring how a bespoke calculator could transform your sales process, we'd love to hear from you.