23.71% is the change from 679 to 840
Calculation steps:
[( 840 - 679 ) ÷ 679] x 100 = 23.71%
Formula
Percentage change = [(840 - 679) / 679] x 100
Subtract the new number by the original number
840 - 679 = 161
161 ÷ 679 = 0.23711340206185566
0.23711340206185566 x 100 = 23.71%