1428.57% is the change from 28 to 428
Calculation steps:
[( 428 - 28 ) ÷ 28] x 100 = 1428.57%
Formula
Percentage change = [(428 - 28) / 28] x 100
Subtract the new number by the original number
428 - 28 = 400
400 ÷ 28 = 14.285714285714286
14.285714285714286 x 100 = 1428.57%