32.42% is the change from 657 to 870
Calculation steps:
[( 870 - 657 ) ÷ 657] x 100 = 32.42%
Formula
Percentage change = [(870 - 657) / 657] x 100
Subtract the new number by the original number
870 - 657 = 213
213 ÷ 657 = 0.3242009132420091
0.3242009132420091 x 100 = 32.42%