52.06% is the change from 340 to 517
Calculation steps:
[( 517 - 340 ) ÷ 340] x 100 = 52.06%
Formula
Percentage change = [(517 - 340) / 340] x 100
Subtract the new number by the original number
517 - 340 = 177
177 ÷ 340 = 0.5205882352941177
0.5205882352941177 x 100 = 52.06%