1296.43% is the change from 28 to 391
Calculation steps:
[( 391 - 28 ) ÷ 28] x 100 = 1296.43%
Formula
Percentage change = [(391 - 28) / 28] x 100
Subtract the new number by the original number
391 - 28 = 363
363 ÷ 28 = 12.964285714285714
12.964285714285714 x 100 = 1296.43%