-83.68% is the change from 429 to 70
Calculation steps:
[( 70 - 429 ) ÷ 429] x 100 = -83.68%
Formula
Percentage change = [(70 - 429) / 429] x 100
Subtract the new number by the original number
70 - 429 = -359
-359 ÷ 429 = -0.8368298368298368
-0.8368298368298368 x 100 = -83.68%