18.7% is the change from 690 to 819
Calculation steps:
[( 819 - 690 ) ÷ 690] x 100 = 18.7%
Formula
Percentage change = [(819 - 690) / 690] x 100
Subtract the new number by the original number
819 - 690 = 129
129 ÷ 690 = 0.18695652173913044
0.18695652173913044 x 100 = 18.7%