18.92% is the change from 830 to 987
Calculation steps:
[( 987 - 830 ) ÷ 830] x 100 = 18.92%
Formula
Percentage change = [(987 - 830) / 830] x 100
Subtract the new number by the original number
987 - 830 = 157
157 ÷ 830 = 0.1891566265060241
0.1891566265060241 x 100 = 18.92%