-76.8% is the change from 431 to 100
Calculation steps:
[( 100 - 431 ) ÷ 431] x 100 = -76.8%
Formula
Percentage change = [(100 - 431) / 431] x 100
Subtract the new number by the original number
100 - 431 = -331
-331 ÷ 431 = -0.7679814385150812
-0.7679814385150812 x 100 = -76.8%