Money calculators

Percentages, discounts, VAT and returns

Percentage CalculatorX% of a number, percent change, add or subtract a percentage
Discount CalculatorPrice after a % or fixed discount, including stacked discounts
Thai VAT Calculator (7%)Add VAT or extract it from a VAT-inclusive price, rounded per the Revenue Department
ROI CalculatorInvested this, got that back: what percent return?