-40.69% is the change from 317 to 188
Calculation steps:
[( 188 - 317 ) ÷ 317] x 100 = -40.69%
Formula
Percentage change = [(188 - 317) / 317] x 100
Subtract the new number by the original number
188 - 317 = -129
-129 ÷ 317 = -0.4069400630914827
-0.4069400630914827 x 100 = -40.69%