The arithmetic a small business has to get right: margin and markup, break-even, lifetime value, tax and loan repayments.
Intervals for a mean using Student's t and for a proportion using Wilson, with the interpretation stated plainly because it is the part everybody gets wrong.
t for a mean, Wilson for a proportionArithmetic →Customer satisfaction from a five-point distribution, with the confidence interval and the same data counted the three ways teams count it.
The counting rule changes the scoreWilson →How many units pay for the fixed costs, and what the contribution per unit has to be before the answer is a number at all.
Break-even units 217 · revenue $10,633.00Arithmetic →A monthly budget from a pasted list, with annual costs spread into a monthly line and the needs and wants split measured against the 50/30/20 rule.
Annual costs, monthly lineArithmetic →Gross burn, net burn and runway, plus the projection that answers whether current growth reaches break-even before the cash runs out.
Net burn, not gross burnArithmetic →Twelve name ideas in a style you choose, each with what it suggests, plus the five checks that actually decide whether you can use one.
Names, then the real checksModel →Generate valid, ready-to-paste WordPress code in seconds without configuring a local runtime.
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