-13.08% is the change from 879 to 764
Calculation steps:
[( 764 - 879 ) ÷ 879] x 100 = -13.08%
Formula
Percentage change = [(764 - 879) / 879] x 100
Subtract the new number by the original number
764 - 879 = -115
-115 ÷ 879 = -0.13083048919226395
-0.13083048919226395 x 100 = -13.08%