69.88% is the change from 342 to 581
Calculation steps:
[( 581 - 342 ) ÷ 342] x 100 = 69.88%
Formula
Percentage change = [(581 - 342) / 342] x 100
Subtract the new number by the original number
581 - 342 = 239
239 ÷ 342 = 0.6988304093567251
0.6988304093567251 x 100 = 69.88%