52.07% is the change from 434 to 660
Calculation steps:
[( 660 - 434 ) ÷ 434] x 100 = 52.07%
Formula
Percentage change = [(660 - 434) / 434] x 100
Subtract the new number by the original number
660 - 434 = 226
226 ÷ 434 = 0.5207373271889401
0.5207373271889401 x 100 = 52.07%