13.22% is the change from 870 to 985
Calculation steps:
[( 985 - 870 ) ÷ 870] x 100 = 13.22%
Formula
Percentage change = [(985 - 870) / 870] x 100
Subtract the new number by the original number
985 - 870 = 115
115 ÷ 870 = 0.13218390804597702
0.13218390804597702 x 100 = 13.22%