67.35% is the change from 343 to 574
Calculation steps:
[( 574 - 343 ) ÷ 343] x 100 = 67.35%
Formula
Percentage change = [(574 - 343) / 343] x 100
Subtract the new number by the original number
574 - 343 = 231
231 ÷ 343 = 0.673469387755102
0.673469387755102 x 100 = 67.35%