Sizu 
Markup ↔ Margin
Convert either way, work a price back from a target margin, and see what a discount really costs you.
What this book teaches
The arithmetic a working week actually asks of you: the difference between markup and margin, and why the same profit gives two different percentages; how to read a percentage change without dividing by the wrong number, and why +20% then −20% does not get you back where you started; where break-even really sits, and what moves it; how a gross figure becomes the number that lands in the account, including overtime and an invoice with expenses on it; how to check a chart before you trust it; when the mean lies and the median does not; and how to compare two options on return, payback and what you give up by choosing one. Series brand: Math Didn't Have To Be This Hard.
Free tools for this book
Percentage Change
Change between any two values, several changes chained together, and points vs. percent kept apart.
Break-Even
Fixed costs, price and variable cost in — break-even in units and revenue out, and what moves it.
Gross-to-Net Pay
Walk a gross figure down through tax, FICA, insurance and retirement to real take-home.
Chart Check
The same numbers drawn on an honest axis and a truncated one, so you can see how much of the jump is real.
Mean, Median, Mode & Range
All four at once, outliers flagged, and weighted averages done properly for unequal groups.
ROI & Payback
Return, payback period and expected value for one option or two side by side.
Work Math Toolkit
All seven work-math tools, gathered and sized to print. No sign-up.
All chapters
- 1Markup, Margin & Pricing
- 2Percentage Change & Business Growth
- 3Break-Even & Cost Analysis
- 4Invoices, Payroll & Billing
- 5Reading Charts & Business Data
- 6Workplace Statistics
- 7Business Problem Solving & Logic