-13.71% is the change from 766 to 661
Calculation steps:
[( 661 - 766 ) ÷ 766] x 100 = -13.71%
Formula
Percentage change = [(661 - 766) / 766] x 100
Subtract the new number by the original number
661 - 766 = -105
-105 ÷ 766 = -0.1370757180156658
-0.1370757180156658 x 100 = -13.71%