-93.69% is the change from 317 to 20
Calculation steps:
[( 20 - 317 ) ÷ 317] x 100 = -93.69%
Formula
Percentage change = [(20 - 317) / 317] x 100
Subtract the new number by the original number
20 - 317 = -297
-297 ÷ 317 = -0.9369085173501577
-0.9369085173501577 x 100 = -93.69%