-47.31% is the change from 818 to 431
Calculation steps:
[( 431 - 818 ) ÷ 818] x 100 = -47.31%
Formula
Percentage change = [(431 - 818) / 818] x 100
Subtract the new number by the original number
431 - 818 = -387
-387 ÷ 818 = -0.4731051344743276
-0.4731051344743276 x 100 = -47.31%