1219.23% is the change from 26 to 343
Calculation steps:
[( 343 - 26 ) ÷ 26] x 100 = 1219.23%
Formula
Percentage change = [(343 - 26) / 26] x 100
Subtract the new number by the original number
343 - 26 = 317
317 ÷ 26 = 12.192307692307692
12.192307692307692 x 100 = 1219.23%