21.21% is the change from 679 to 823
Calculation steps:
[( 823 - 679 ) ÷ 679] x 100 = 21.21%
Formula
Percentage change = [(823 - 679) / 679] x 100
Subtract the new number by the original number
823 - 679 = 144
144 ÷ 679 = 0.21207658321060383
0.21207658321060383 x 100 = 21.21%