2.18% is the change from 919 to 939
Calculation steps:
[( 939 - 919 ) ÷ 919] x 100 = 2.18%
Formula
Percentage change = [(939 - 919) / 919] x 100
Subtract the new number by the original number
939 - 919 = 20
20 ÷ 919 = 0.02176278563656148
0.02176278563656148 x 100 = 2.18%