-12.71% is the change from 763 to 666
Calculation steps:
[( 666 - 763 ) ÷ 763] x 100 = -12.71%
Formula
Percentage change = [(666 - 763) / 763] x 100
Subtract the new number by the original number
666 - 763 = -97
-97 ÷ 763 = -0.127129750982962
-0.127129750982962 x 100 = -12.71%