-53.58% is the change from 657 to 305
Calculation steps:
[( 305 - 657 ) ÷ 657] x 100 = -53.58%
Formula
Percentage change = [(305 - 657) / 657] x 100
Subtract the new number by the original number
305 - 657 = -352
-352 ÷ 657 = -0.5357686453576864
-0.5357686453576864 x 100 = -53.58%