10.46% is the change from 870 to 961
Calculation steps:
[( 961 - 870 ) ÷ 870] x 100 = 10.46%
Formula
Percentage change = [(961 - 870) / 870] x 100
Subtract the new number by the original number
961 - 870 = 91
91 ÷ 870 = 0.10459770114942529
0.10459770114942529 x 100 = 10.46%