Simple vs Compound Interest Explained

Simple interest is charged on the principal only; compound interest is charged on principal plus past interest. Compare formulas and results side by side.
Minutes to Decimal Hours: A Conversion Chart for Timesheets

Convert minutes to decimal hours for payroll with this chart and formula. Avoid the common timesheet error of writing 7.30 for seven and a half hours.
Straight Line vs Diminishing Value Depreciation

Straight line spreads an asset’s cost evenly; diminishing value claims more in the early years. Compare the two methods side by side with a worked example.
How to Calculate Your Break-Even Point

Your break-even point is where sales cover all costs. Learn the formula, see a worked small business example, and find out how to bring the number down.
How to Calculate GST in Australia: Add It, Remove It, Find It

Three GST formulas every Australian business needs: multiply by 1.1 to add GST, divide by 1.1 to remove it, and divide by 11 to find the GST in a total.
Markup vs Margin: The Difference, With Examples

Markup is profit as a percentage of cost; margin is profit as a percentage of price. See how they differ, how to convert between them, and how to avoid underpricing.