-15.81% is the change from 759 to 639
Calculation steps:
[( 639 - 759 ) ÷ 759] x 100 = -15.81%
Formula
Percentage change = [(639 - 759) / 759] x 100
Subtract the new number by the original number
639 - 759 = -120
-120 ÷ 759 = -0.15810276679841898
-0.15810276679841898 x 100 = -15.81%