-12.9% is the change from 884 to 770
Calculation steps:
[( 770 - 884 ) ÷ 884] x 100 = -12.9%
Formula
Percentage change = [(770 - 884) / 884] x 100
Subtract the new number by the original number
770 - 884 = -114
-114 ÷ 884 = -0.12895927601809956
-0.12895927601809956 x 100 = -12.9%