58.31% is the change from 343 to 543
Calculation steps:
[( 543 - 343 ) ÷ 343] x 100 = 58.31%
Formula
Percentage change = [(543 - 343) / 343] x 100
Subtract the new number by the original number
543 - 343 = 200
200 ÷ 343 = 0.5830903790087464
0.5830903790087464 x 100 = 58.31%