-68.97% is the change from 261 to 81
Calculation steps:
[( 81 - 261 ) ÷ 261] x 100 = -68.97%
Formula
Percentage change = [(81 - 261) / 261] x 100
Subtract the new number by the original number
81 - 261 = -180
-180 ÷ 261 = -0.6896551724137931
-0.6896551724137931 x 100 = -68.97%