10.47% is the change from 850 to 939
Calculation steps:
[( 939 - 850 ) ÷ 850] x 100 = 10.47%
Formula
Percentage change = [(939 - 850) / 850] x 100
Subtract the new number by the original number
939 - 850 = 89
89 ÷ 850 = 0.10470588235294118
0.10470588235294118 x 100 = 10.47%