-73.82% is the change from 317 to 83
Calculation steps:
[( 83 - 317 ) ÷ 317] x 100 = -73.82%
Formula
Percentage change = [(83 - 317) / 317] x 100
Subtract the new number by the original number
83 - 317 = -234
-234 ÷ 317 = -0.7381703470031545
-0.7381703470031545 x 100 = -73.82%