57.94% is the change from 340 to 537
Calculation steps:
[( 537 - 340 ) ÷ 340] x 100 = 57.94%
Formula
Percentage change = [(537 - 340) / 340] x 100
Subtract the new number by the original number
537 - 340 = 197
197 ÷ 340 = 0.5794117647058824
0.5794117647058824 x 100 = 57.94%