THE WORKBENCH

A tool for the task.

Choose percentages, dates, or measures. Each tool shows its formula, assumptions, and a worked example.

A hundred-square grid with twenty highlighted squares
TOOL / 01

Percentage calculator

Find a percentage, a share, a change, or a sale price.

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A calendar interval with the start and end dates marked
TOOL / 02

Date calculator

Count calendar days, weekdays, or add days to a date.

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A dual-scale ruler comparing inches and centimeters
TOOL / 03

Unit converter

Convert length, mass, volume, area, and temperature.

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