778.57% is the change from 28 to 246
Calculation steps:
[( 246 - 28 ) ÷ 28] x 100 = 778.57%
Formula
Percentage change = [(246 - 28) / 28] x 100
Subtract the new number by the original number
246 - 28 = 218
218 ÷ 28 = 7.785714285714286
7.785714285714286 x 100 = 778.57%