-88.37% is the change from 86 to 10
Calculation steps:
[( 10 - 86 ) ÷ 86] x 100 = -88.37%
Formula
Percentage change = [(10 - 86) / 86] x 100
Subtract the new number by the original number
10 - 86 = -76
-76 ÷ 86 = -0.8837209302325582
-0.8837209302325582 x 100 = -88.37%