21.43% is the change from 672 to 816
Calculation steps:
[( 816 - 672 ) ÷ 672] x 100 = 21.43%
Formula
Percentage change = [(816 - 672) / 672] x 100
Subtract the new number by the original number
816 - 672 = 144
144 ÷ 672 = 0.21428571428571427
0.21428571428571427 x 100 = 21.43%