-10.81% is the change from 740 to 660
Calculation steps:
[( 660 - 740 ) ÷ 740] x 100 = -10.81%
Formula
Percentage change = [(660 - 740) / 740] x 100
Subtract the new number by the original number
660 - 740 = -80
-80 ÷ 740 = -0.10810810810810811
-0.10810810810810811 x 100 = -10.81%