2530.77% is the change from 13 to 342
Calculation steps:
[( 342 - 13 ) ÷ 13] x 100 = 2530.77%
Formula
Percentage change = [(342 - 13) / 13] x 100
Subtract the new number by the original number
342 - 13 = 329
329 ÷ 13 = 25.307692307692307
25.307692307692307 x 100 = 2530.77%