-37.21% is the change from 86 to 54
Calculation steps:
[( 54 - 86 ) ÷ 86] x 100 = -37.21%
Formula
Percentage change = [(54 - 86) / 86] x 100
Subtract the new number by the original number
54 - 86 = -32
-32 ÷ 86 = -0.37209302325581395
-0.37209302325581395 x 100 = -37.21%