-74.74% is the change from 673 to 170
Calculation steps:
[( 170 - 673 ) ÷ 673] x 100 = -74.74%
Formula
Percentage change = [(170 - 673) / 673] x 100
Subtract the new number by the original number
170 - 673 = -503
-503 ÷ 673 = -0.7473997028231798
-0.7473997028231798 x 100 = -74.74%