-20.19% is the change from 644 to 514
Calculation steps:
[( 514 - 644 ) ÷ 644] x 100 = -20.19%
Formula
Percentage change = [(514 - 644) / 644] x 100
Subtract the new number by the original number
514 - 644 = -130
-130 ÷ 644 = -0.20186335403726707
-0.20186335403726707 x 100 = -20.19%