39.73% is the change from 657 to 918
Calculation steps:
[( 918 - 657 ) ÷ 657] x 100 = 39.73%
Formula
Percentage change = [(918 - 657) / 657] x 100
Subtract the new number by the original number
918 - 657 = 261
261 ÷ 657 = 0.3972602739726027
0.3972602739726027 x 100 = 39.73%