Work out what X percent of a number is and the percentage increase or decrease between two values, with results updating as you type.
Two small calculators sit side by side. The first answers "what is X% of Y?", which is useful for discounts, tips, tax amounts or commission. The second shows the percentage change from a starting value to a new value, positive for an increase and negative for a decrease, for example to compare prices, scores or monthly figures.
Both panels recalculate instantly as you edit the numbers, and results are shown to two decimal places. If the starting value of the change calculation is zero, the result is shown as 0% because a change from zero cannot be expressed as a percentage.
It is (new value minus original value) divided by the original value, multiplied by 100. A negative result means a decrease.
Yes. Both panels accept decimal numbers and show results rounded to two decimal places.