-45.35% is the change from 86 to 47
Calculation steps:
[( 47 - 86 ) ÷ 86] x 100 = -45.35%
Formula
Percentage change = [(47 - 86) / 86] x 100
Subtract the new number by the original number
47 - 86 = -39
-39 ÷ 86 = -0.45348837209302323
-0.45348837209302323 x 100 = -45.35%