28.21% is the change from 663 to 850
Calculation steps:
[( 850 - 663 ) ÷ 663] x 100 = 28.21%
Formula
Percentage change = [(850 - 663) / 663] x 100
Subtract the new number by the original number
850 - 663 = 187
187 ÷ 663 = 0.28205128205128205
0.28205128205128205 x 100 = 28.21%