235.35% is the change from 215 to 721
Calculation steps:
[( 721 - 215 ) ÷ 215] x 100 = 235.35%
Formula
Percentage change = [(721 - 215) / 215] x 100
Subtract the new number by the original number
721 - 215 = 506
506 ÷ 215 = 2.353488372093023
2.353488372093023 x 100 = 235.35%