-59.37% is the change from 315 to 128
Calculation steps:
[( 128 - 315 ) ÷ 315] x 100 = -59.37%
Formula
Percentage change = [(128 - 315) / 315] x 100
Subtract the new number by the original number
128 - 315 = -187
-187 ÷ 315 = -0.5936507936507937
-0.5936507936507937 x 100 = -59.37%