49.56% is the change from 343 to 513
Calculation steps:
[( 513 - 343 ) ÷ 343] x 100 = 49.56%
Formula
Percentage change = [(513 - 343) / 343] x 100
Subtract the new number by the original number
513 - 343 = 170
170 ÷ 343 = 0.4956268221574344
0.4956268221574344 x 100 = 49.56%