72.65% is the change from 340 to 587
Calculation steps:
[( 587 - 340 ) ÷ 340] x 100 = 72.65%
Formula
Percentage change = [(587 - 340) / 340] x 100
Subtract the new number by the original number
587 - 340 = 247
247 ÷ 340 = 0.7264705882352941
0.7264705882352941 x 100 = 72.65%