18.55% is the change from 717 to 850
Calculation steps:
[( 850 - 717 ) ÷ 717] x 100 = 18.55%
Formula
Percentage change = [(850 - 717) / 717] x 100
Subtract the new number by the original number
850 - 717 = 133
133 ÷ 717 = 0.18549511854951187
0.18549511854951187 x 100 = 18.55%