A/B Test Sample-Size EstimatorUses z-test formula to compute needed samples for given baseline & liftab testingsample size+6
A/B Testing Significance CalculatorCalculates statistical significance of A/B test resultsab testingstatistics+7
CPC / CPA / ROI CalculatorCalculate key performance indicators like CPC, CPA, ROAS, breakeven points, and maximum CPA based on marketing spendcpccpa+8
Discount-Margin WizardFinds final price, margin %, and revenue impact for any discount scenariodiscountmargin+6
LTV-CAC CalculatorCompute customer lifetime value vs. acquisition cost with churn & margin slidersltvcac+7