1215.38% is the change from 26 to 342
Calculation steps:
[( 342 - 26 ) ÷ 26] x 100 = 1215.38%
Formula
Percentage change = [(342 - 26) / 26] x 100
Subtract the new number by the original number
342 - 26 = 316
316 ÷ 26 = 12.153846153846153
12.153846153846153 x 100 = 1215.38%