Business & work
Margins, break-even, pay and hours.
Margin and markup are not the same thing, and break-even depends on which costs you count as fixed. Each page states the convention it is using before it gives a number.
Pricing & profit
Margin, markup, break-even, ROI and discounts.
Margin and markup are the two most confused numbers in business. These keep them clearly apart and solve for whichever one you are missing.
- Break-even How many units cover the fixed costs before anything is profit.
- Commission What a rate actually pays once the threshold is taken into account.
- Discount What you pay after one discount, or two stacked on each other.
- Markup What a markup actually leaves you, and why it is not the margin.
- Price per unit Which of two sizes is actually cheaper.
- Profit margin Margin, markup and profit from a cost and a price — and why the two percentages differ.
- ROI What came back against what went in, and what that is a year.
- Sales tax & VAT Add tax to a price, or pull it back out of one that already includes it.
Pay & hours
Hourly to salary, overtime, timesheets and time off.
Converting between the ways work gets priced — an hourly rate, an annual salary, a day rate — and totting up the hours behind them.
- Employee cost What a hire actually costs, which is not the salary.
- Freelance rate What to charge to take home what you need, once unbillable time is paid for.
- Hourly to salary Annual, monthly and weekly pay from an hourly rate, allowing for unpaid weeks.
- Overtime pay Basic and overtime pay for a week, at any threshold and multiplier.
- Leave accrual How much paid leave you have earned so far, and how much is left.
- Pay rise What a rise is worth in money, and what it is worth after inflation.
- Salary to hourly What a salary works out at per hour, once you count the hours honestly.
- Timesheet Hours and pay for a week, from clock times, with breaks and overtime.