2553.85% is the change from 13 to 345
Calculation steps:
[( 345 - 13 ) ÷ 13] x 100 = 2553.85%
Formula
Percentage change = [(345 - 13) / 13] x 100
Subtract the new number by the original number
345 - 13 = 332
332 ÷ 13 = 25.53846153846154
25.53846153846154 x 100 = 2553.85%