-84.58% is the change from 454 to 70
Calculation steps:
[( 70 - 454 ) ÷ 454] x 100 = -84.58%
Formula
Percentage change = [(70 - 454) / 454] x 100
Subtract the new number by the original number
70 - 454 = -384
-384 ÷ 454 = -0.8458149779735683
-0.8458149779735683 x 100 = -84.58%