-53.13% is the change from 672 to 315
Calculation steps:
[( 315 - 672 ) ÷ 672] x 100 = -53.13%
Formula
Percentage change = [(315 - 672) / 672] x 100
Subtract the new number by the original number
315 - 672 = -357
-357 ÷ 672 = -0.53125
-0.53125 x 100 = -53.13%