45.05% is the change from 455 to 660
Calculation steps:
[( 660 - 455 ) ÷ 455] x 100 = 45.05%
Formula
Percentage change = [(660 - 455) / 455] x 100
Subtract the new number by the original number
660 - 455 = 205
205 ÷ 455 = 0.45054945054945056
0.45054945054945056 x 100 = 45.05%