74.64% is the change from 343 to 599
Calculation steps:
[( 599 - 343 ) ÷ 343] x 100 = 74.64%
Formula
Percentage change = [(599 - 343) / 343] x 100
Subtract the new number by the original number
599 - 343 = 256
256 ÷ 343 = 0.7463556851311953
0.7463556851311953 x 100 = 74.64%