-74.7% is the change from 672 to 170
Calculation steps:
[( 170 - 672 ) ÷ 672] x 100 = -74.7%
Formula
Percentage change = [(170 - 672) / 672] x 100
Subtract the new number by the original number
170 - 672 = -502
-502 ÷ 672 = -0.7470238095238095
-0.7470238095238095 x 100 = -74.7%