25.64% is the change from 273 to 343
Calculation steps:
[( 343 - 273 ) ÷ 273] x 100 = 25.64%
Formula
Percentage change = [(343 - 273) / 273] x 100
Subtract the new number by the original number
343 - 273 = 70
70 ÷ 273 = 0.2564102564102564
0.2564102564102564 x 100 = 25.64%