-79.91% is the change from 672 to 135
Calculation steps:
[( 135 - 672 ) ÷ 672] x 100 = -79.91%
Formula
Percentage change = [(135 - 672) / 672] x 100
Subtract the new number by the original number
135 - 672 = -537
-537 ÷ 672 = -0.7991071428571429
-0.7991071428571429 x 100 = -79.91%