-12.43% is the change from 877 to 768
Calculation steps:
[( 768 - 877 ) ÷ 877] x 100 = -12.43%
Formula
Percentage change = [(768 - 877) / 877] x 100
Subtract the new number by the original number
768 - 877 = -109
-109 ÷ 877 = -0.12428734321550741
-0.12428734321550741 x 100 = -12.43%