-82.62% is the change from 466 to 81
Calculation steps:
[( 81 - 466 ) ÷ 466] x 100 = -82.62%
Formula
Percentage change = [(81 - 466) / 466] x 100
Subtract the new number by the original number
81 - 466 = -385
-385 ÷ 466 = -0.8261802575107297
-0.8261802575107297 x 100 = -82.62%