-39.93% is the change from 283 to 170
Calculation steps:
[( 170 - 283 ) ÷ 283] x 100 = -39.93%
Formula
Percentage change = [(170 - 283) / 283] x 100
Subtract the new number by the original number
170 - 283 = -113
-113 ÷ 283 = -0.3992932862190813
-0.3992932862190813 x 100 = -39.93%