-83.76% is the change from 431 to 70
Calculation steps:
[( 70 - 431 ) ÷ 431] x 100 = -83.76%
Formula
Percentage change = [(70 - 431) / 431] x 100
Subtract the new number by the original number
70 - 431 = -361
-361 ÷ 431 = -0.8375870069605569
-0.8375870069605569 x 100 = -83.76%