1114.29% is the change from 28 to 340
Calculation steps:
[( 340 - 28 ) ÷ 28] x 100 = 1114.29%
Formula
Percentage change = [(340 - 28) / 28] x 100
Subtract the new number by the original number
340 - 28 = 312
312 ÷ 28 = 11.142857142857142
11.142857142857142 x 100 = 1114.29%