Compare price, payment fees, sales mix and operational savings. Start with project time logs, licence invoices and retainer scopes. Each example below uses hypothetical values you can replace.
Payment Fee Gross-Up
Find the charge needed to retain a chosen amount after payment processing.
Charge = (required receipt + fixed fee) / (1 − percentage fee)
Show example inputs and result
| Required net receipt | 500 |
|---|---|
| Processor fee | 2.9 % |
| Fixed transaction fee | 0.3 |
Result: 515.242 .
The percentage fee applies to the final charge. This arithmetic does not determine whether surcharging is permitted.
Open payment fee gross-upPrice Needed After Cost Inflation
Reprice work when supplier or delivery costs rise.
New price = cost × (1 + increase) / (1 − margin)
Show example inputs and result
| Current assigned cost | 600 |
|---|---|
| Cost increase | 8 % |
| Required margin | 30 % |
Result: 925.7143 .
Enter a weighted increase across the costs included. This is a target-margin calculation, not a demand forecast.
Open price needed after cost inflationTwo-Service Sales Mix Margin
Check how the mix of two services changes total contribution margin.
Combined margin = (total revenue − total variable cost) / total revenue × 100
Show example inputs and result
| Revenue from service A | 12,000 |
|---|---|
| Variable cost of service A | 6,000 |
| Revenue from service B | 8,000 |
| Variable cost of service B | 6,000 |
Result: 40 %.
Weight by revenue; a simple average gives the smaller service too much influence. Fixed overhead is excluded.
Open two-service sales mix marginOwner Earnings per Hour
Include unpaid administration when evaluating what the business earns for its owner.
Owner return = (revenue − costs excluding owner pay) / owner hours
Show example inputs and result
| Period revenue | 15,000 |
|---|---|
| All costs excluding owner pay | 10,000 |
| Owner delivery and admin hours | 180 |
Result: 27.7778 per owner hour.
Include selling, travel and administration. This is pre-tax return and does not value invested capital.
Open owner earnings per hourError Prevention Break-Even
Find how many costly mistakes a control needs to prevent.
Errors to prevent = ceiling(prevention cost / cost per error)
Show example inputs and result
| Monthly prevention cost | 500 |
|---|---|
| Fully assigned cost per avoidable error | 125 |
Result: 4 errors per month.
Use avoidable cash or capacity costs. Do not count theoretical opportunity revenue as collected revenue.
Open error prevention break-evenProfit from a Cost Reduction
Compare an operating saving with the cost of implementing it.
Net recurring improvement = spend × saving rate − implementation cost
Show example inputs and result
| Current recurring spend | 10,000 |
|---|---|
| Expected saving | 8 % |
| Monthly implementation cost | 200 |
Result: 600 per period.
Only the affected spend is reduced. Include implementation and service-quality impacts separately.
Open profit from a cost reductionUse the results in your plan
For a software agency business, review engineering, review, and project management across the complete workflow. Use one consistent period and delivery unit: a project. Compare the assumptions with recorded outcomes after delivery, then update the estimate.
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