-52.82% is the change from 657 to 310
Calculation steps:
[( 310 - 657 ) ÷ 657] x 100 = -52.82%
Formula
Percentage change = [(310 - 657) / 657] x 100
Subtract the new number by the original number
310 - 657 = -347
-347 ÷ 657 = -0.528158295281583
-0.528158295281583 x 100 = -52.82%