-89.58% is the change from 672 to 70
Calculation steps:
[( 70 - 672 ) ÷ 672] x 100 = -89.58%
Formula
Percentage change = [(70 - 672) / 672] x 100
Subtract the new number by the original number
70 - 672 = -602
-602 ÷ 672 = -0.8958333333333334
-0.8958333333333334 x 100 = -89.58%