-53.27% is the change from 657 to 307
Calculation steps:
[( 307 - 657 ) ÷ 657] x 100 = -53.27%
Formula
Percentage change = [(307 - 657) / 657] x 100
Subtract the new number by the original number
307 - 657 = -350
-350 ÷ 657 = -0.532724505327245
-0.532724505327245 x 100 = -53.27%