-13.84% is the change from 766 to 660
Calculation steps:
[( 660 - 766 ) ÷ 766] x 100 = -13.84%
Formula
Percentage change = [(660 - 766) / 766] x 100
Subtract the new number by the original number
660 - 766 = -106
-106 ÷ 766 = -0.13838120104438642
-0.13838120104438642 x 100 = -13.84%