72.3% is the change from 343 to 591
Calculation steps:
[( 591 - 343 ) ÷ 343] x 100 = 72.3%
Formula
Percentage change = [(591 - 343) / 343] x 100
Subtract the new number by the original number
591 - 343 = 248
248 ÷ 343 = 0.7230320699708455
0.7230320699708455 x 100 = 72.3%