-83.61% is the change from 427 to 70
Calculation steps:
[( 70 - 427 ) ÷ 427] x 100 = -83.61%
Formula
Percentage change = [(70 - 427) / 427] x 100
Subtract the new number by the original number
70 - 427 = -357
-357 ÷ 427 = -0.8360655737704918
-0.8360655737704918 x 100 = -83.61%