66.93% is the change from 514 to 858
Calculation steps:
[( 858 - 514 ) ÷ 514] x 100 = 66.93%
Formula
Percentage change = [(858 - 514) / 514] x 100
Subtract the new number by the original number
858 - 514 = 344
344 ÷ 514 = 0.669260700389105
0.669260700389105 x 100 = 66.93%