-90.95% is the change from 431 to 39
Calculation steps:
[( 39 - 431 ) ÷ 431] x 100 = -90.95%
Formula
Percentage change = [(39 - 431) / 431] x 100
Subtract the new number by the original number
39 - 431 = -392
-392 ÷ 431 = -0.9095127610208816
-0.9095127610208816 x 100 = -90.95%