-75.16% is the change from 644 to 160
Calculation steps:
[( 160 - 644 ) ÷ 644] x 100 = -75.16%
Formula
Percentage change = [(160 - 644) / 644] x 100
Subtract the new number by the original number
160 - 644 = -484
-484 ÷ 644 = -0.7515527950310559
-0.7515527950310559 x 100 = -75.16%