20.51% is the change from 663 to 799
Calculation steps:
[( 799 - 663 ) ÷ 663] x 100 = 20.51%
Formula
Percentage change = [(799 - 663) / 663] x 100
Subtract the new number by the original number
799 - 663 = 136
136 ÷ 663 = 0.20512820512820512
0.20512820512820512 x 100 = 20.51%