75.88% is the change from 340 to 598
Calculation steps:
[( 598 - 340 ) ÷ 340] x 100 = 75.88%
Formula
Percentage change = [(598 - 340) / 340] x 100
Subtract the new number by the original number
598 - 340 = 258
258 ÷ 340 = 0.7588235294117647
0.7588235294117647 x 100 = 75.88%