55.69% is the change from 343 to 534
Calculation steps:
[( 534 - 343 ) ÷ 343] x 100 = 55.69%
Formula
Percentage change = [(534 - 343) / 343] x 100
Subtract the new number by the original number
534 - 343 = 191
191 ÷ 343 = 0.5568513119533528
0.5568513119533528 x 100 = 55.69%