10.23% is the change from 870 to 959
Calculation steps:
[( 959 - 870 ) ÷ 870] x 100 = 10.23%
Formula
Percentage change = [(959 - 870) / 870] x 100
Subtract the new number by the original number
959 - 870 = 89
89 ÷ 870 = 0.10229885057471265
0.10229885057471265 x 100 = 10.23%