-22.98% is the change from 644 to 496
Calculation steps:
[( 496 - 644 ) ÷ 644] x 100 = -22.98%
Formula
Percentage change = [(496 - 644) / 644] x 100
Subtract the new number by the original number
496 - 644 = -148
-148 ÷ 644 = -0.22981366459627328
-0.22981366459627328 x 100 = -22.98%