-71.48% is the change from 284 to 81
Calculation steps:
[( 81 - 284 ) ÷ 284] x 100 = -71.48%
Formula
Percentage change = [(81 - 284) / 284] x 100
Subtract the new number by the original number
81 - 284 = -203
-203 ÷ 284 = -0.7147887323943662
-0.7147887323943662 x 100 = -71.48%