70.21% is the change from 386 to 657
Calculation steps:
[( 657 - 386 ) ÷ 386] x 100 = 70.21%
Formula
Percentage change = [(657 - 386) / 386] x 100
Subtract the new number by the original number
657 - 386 = 271
271 ÷ 386 = 0.7020725388601037
0.7020725388601037 x 100 = 70.21%