-83.49% is the change from 430 to 71
Calculation steps:
[( 71 - 430 ) ÷ 430] x 100 = -83.49%
Formula
Percentage change = [(71 - 430) / 430] x 100
Subtract the new number by the original number
71 - 430 = -359
-359 ÷ 430 = -0.8348837209302326
-0.8348837209302326 x 100 = -83.49%