-53.12% is the change from 657 to 308
Calculation steps:
[( 308 - 657 ) ÷ 657] x 100 = -53.12%
Formula
Percentage change = [(308 - 657) / 657] x 100
Subtract the new number by the original number
308 - 657 = -349
-349 ÷ 657 = -0.5312024353120244
-0.5312024353120244 x 100 = -53.12%