97.45% is the change from 157 to 310
Calculation steps:
[( 310 - 157 ) ÷ 157] x 100 = 97.45%
Formula
Percentage change = [(310 - 157) / 157] x 100
Subtract the new number by the original number
310 - 157 = 153
153 ÷ 157 = 0.9745222929936306
0.9745222929936306 x 100 = 97.45%