88.84% is the change from 242 to 457
Calculation steps:
[( 457 - 242 ) ÷ 242] x 100 = 88.84%
Formula
Percentage change = [(457 - 242) / 242] x 100
Subtract the new number by the original number
457 - 242 = 215
215 ÷ 242 = 0.8884297520661157
0.8884297520661157 x 100 = 88.84%