-75.23% is the change from 646 to 160
Calculation steps:
[( 160 - 646 ) ÷ 646] x 100 = -75.23%
Formula
Percentage change = [(160 - 646) / 646] x 100
Subtract the new number by the original number
160 - 646 = -486
-486 ÷ 646 = -0.7523219814241486
-0.7523219814241486 x 100 = -75.23%