Percentage Change Calculator

((New − Original) / Original) × 100. Default 80 to 100 is a 25% increase. 100 to 80 is a 20% decrease. Equal values are no change. Original 100 and new 0 is a 100% decrease. Original 0 is undefined.

Percentage change

Absolute change

Formula

Calculation

Absolute formula

Classification is labeled INCREASE, DECREASE, or NO CHANGE in text, not by color alone. Related: apply a rate forward · increase and decrease article