15.66% is the change from 830 to 960
Calculation steps:
[( 960 - 830 ) ÷ 830] x 100 = 15.66%
Formula
Percentage change = [(960 - 830) / 830] x 100
Subtract the new number by the original number
960 - 830 = 130
130 ÷ 830 = 0.1566265060240964
0.1566265060240964 x 100 = 15.66%