63.42% is the change from 514 to 840
Calculation steps:
[( 840 - 514 ) ÷ 514] x 100 = 63.42%
Formula
Percentage change = [(840 - 514) / 514] x 100
Subtract the new number by the original number
840 - 514 = 326
326 ÷ 514 = 0.6342412451361867
0.6342412451361867 x 100 = 63.42%