-15.49% is the change from 781 to 660
Calculation steps:
[( 660 - 781 ) ÷ 781] x 100 = -15.49%
Formula
Percentage change = [(660 - 781) / 781] x 100
Subtract the new number by the original number
660 - 781 = -121
-121 ÷ 781 = -0.15492957746478872
-0.15492957746478872 x 100 = -15.49%