Marketing maths that accounts for the discount you give away

Allocate a budget, test whether a promotion actually pays, and size what your sales team can close. Nothing you enter leaves your device.

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Marketing budget allocator

Split a budget across channels by what each actually costs to win a customer.

Your channels

This allocates by the cost per customer you supply, and those numbers usually come from small samples. Treat the split as a starting position to test against, not an optimisation — and revisit it once you have more data than opinion.
How this is calculated

Minimum spends are honoured first. The rest is divided in proportion to 1 ÷ cost per customer, raised to the power of your bias setting, so cheaper channels attract more money. Ceilings are respected and any remainder goes to the most efficient uncapped channel.

Nothing here guarantees a return. Channels saturate, costs rise with volume, and a channel that works at $1,000 may not at $10,000.

Promotion & discount

How much extra you must sell to make a discount worth running.

The hidden cost of a promotion is the margin handed to customers who were going to buy at full price. That's why the required lift is so much larger than people expect — a 20% discount on a 60% margin needs roughly a 50% increase in volume just to stand still.
How this is calculated

break-even extra units = baseline × (normal contribution − discounted contribution) ÷ discounted contribution

If the discounted price falls below your unit cost, no volume rescues it and the tool says so rather than printing a number.

Sales capacity

How much selling your team can physically do — and when you need another person.

"Selling time" is the share of the week genuinely spent in front of prospects. Half is generous — admin, internal meetings, travel and reporting take most of the rest, which is why hiring another seller adds less capacity than the headcount suggests.
How this is calculated

selling hours = people × working weeks × hours × selling % · deals workable = selling hours ÷ hours per deal · closed = deals × win rate

Lead follow-up planner

A simple, persistent follow-up rhythm — because most enquiries are lost by silence, not rejection.

This builds a reminder list on your device. It does not send anything, and it makes no judgement about what contact is permitted. Rules on unsolicited approaches differ by country and by how the enquiry reached you — honour any stated preference, and stop when asked.

Marketing arithmetic that survives contact with reality

Most marketing decisions are made on a feeling about which channel is working. The arithmetic here is not sophisticated, but it corrects three specific errors that cost real money: assuming a discount pays for itself, assuming an extra salesperson adds a full person's worth of capacity, and spreading a budget evenly across channels with wildly different costs per customer.

None of these figures leave your browser. Spend, conversion rates, deal values and customer names are exactly the sort of thing a marketing tool has no business collecting.

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