-80.05% is the change from 431 to 86
Calculation steps:
[( 86 - 431 ) ÷ 431] x 100 = -80.05%
Formula
Percentage change = [(86 - 431) / 431] x 100
Subtract the new number by the original number
86 - 431 = -345
-345 ÷ 431 = -0.8004640371229699
-0.8004640371229699 x 100 = -80.05%