17.88% is the change from 839 to 989
Calculation steps:
[( 989 - 839 ) ÷ 839] x 100 = 17.88%
Formula
Percentage change = [(989 - 839) / 839] x 100
Subtract the new number by the original number
989 - 839 = 150
150 ÷ 839 = 0.17878426698450536
0.17878426698450536 x 100 = 17.88%