-13.56% is the change from 767 to 663
Calculation steps:
[( 663 - 767 ) ÷ 767] x 100 = -13.56%
Formula
Percentage change = [(663 - 767) / 767] x 100
Subtract the new number by the original number
663 - 767 = -104
-104 ÷ 767 = -0.13559322033898305
-0.13559322033898305 x 100 = -13.56%