9.89% is the change from 870 to 956
Calculation steps:
[( 956 - 870 ) ÷ 870] x 100 = 9.89%
Formula
Percentage change = [(956 - 870) / 870] x 100
Subtract the new number by the original number
956 - 870 = 86
86 ÷ 870 = 0.09885057471264368
0.09885057471264368 x 100 = 9.89%