-4.81% is the change from 644 to 613
Calculation steps:
[( 613 - 644 ) ÷ 644] x 100 = -4.81%
Formula
Percentage change = [(613 - 644) / 644] x 100
Subtract the new number by the original number
613 - 644 = -31
-31 ÷ 644 = -0.04813664596273292
-0.04813664596273292 x 100 = -4.81%