-81.14% is the change from 456 to 86
Calculation steps:
[( 86 - 456 ) ÷ 456] x 100 = -81.14%
Formula
Percentage change = [(86 - 456) / 456] x 100
Subtract the new number by the original number
86 - 456 = -370
-370 ÷ 456 = -0.8114035087719298
-0.8114035087719298 x 100 = -81.14%