-67.83% is the change from 258 to 83
Calculation steps:
[( 83 - 258 ) ÷ 258] x 100 = -67.83%
Formula
Percentage change = [(83 - 258) / 258] x 100
Subtract the new number by the original number
83 - 258 = -175
-175 ÷ 258 = -0.6782945736434108
-0.6782945736434108 x 100 = -67.83%