-71.38% is the change from 283 to 81
Calculation steps:
[( 81 - 283 ) ÷ 283] x 100 = -71.38%
Formula
Percentage change = [(81 - 283) / 283] x 100
Subtract the new number by the original number
81 - 283 = -202
-202 ÷ 283 = -0.7137809187279152
-0.7137809187279152 x 100 = -71.38%