20.62% is the change from 679 to 819
Calculation steps:
[( 819 - 679 ) ÷ 679] x 100 = 20.62%
Formula
Percentage change = [(819 - 679) / 679] x 100
Subtract the new number by the original number
819 - 679 = 140
140 ÷ 679 = 0.20618556701030927
0.20618556701030927 x 100 = 20.62%