28.4% is the change from 662 to 850
Calculation steps:
[( 850 - 662 ) ÷ 662] x 100 = 28.4%
Formula
Percentage change = [(850 - 662) / 662] x 100
Subtract the new number by the original number
850 - 662 = 188
188 ÷ 662 = 0.283987915407855
0.283987915407855 x 100 = 28.4%