-80.37% is the change from 438 to 86
Calculation steps:
[( 86 - 438 ) ÷ 438] x 100 = -80.37%
Formula
Percentage change = [(86 - 438) / 438] x 100
Subtract the new number by the original number
86 - 438 = -352
-352 ÷ 438 = -0.8036529680365296
-0.8036529680365296 x 100 = -80.37%