14.51% is the change from 820 to 939
Calculation steps:
[( 939 - 820 ) ÷ 820] x 100 = 14.51%
Formula
Percentage change = [(939 - 820) / 820] x 100
Subtract the new number by the original number
939 - 820 = 119
119 ÷ 820 = 0.14512195121951219
0.14512195121951219 x 100 = 14.51%