Percentage Calculator Percentage Calculator Calculate X% of Y, percentage change, increase/decrease, differences instantly. X% of Y What % is X of Y % Increase % Decrease % Difference Reverse % Percentage: Of: Part (X): Whole (Y): Original: New: Original: New: Value 1: Value 2: Final Value: % Change: % Increase/Decrease: Increase Decrease Enter values above 📋 Copy Result Common Questions What is percentage increase?((New - Original) / Original) × 100