171.57% is the change from 313 to 850
Calculation steps:
[( 850 - 313 ) ÷ 313] x 100 = 171.57%
Formula
Percentage change = [(850 - 313) / 313] x 100
Subtract the new number by the original number
850 - 313 = 537
537 ÷ 313 = 1.7156549520766773
1.7156549520766773 x 100 = 171.57%