-74.92% is the change from 646 to 162
Calculation steps:
[( 162 - 646 ) ÷ 646] x 100 = -74.92%
Formula
Percentage change = [(162 - 646) / 646] x 100
Subtract the new number by the original number
162 - 646 = -484
-484 ÷ 646 = -0.7492260061919505
-0.7492260061919505 x 100 = -74.92%