828.57% is the change from 28 to 260
Calculation steps:
[( 260 - 28 ) ÷ 28] x 100 = 828.57%
Formula
Percentage change = [(260 - 28) / 28] x 100
Subtract the new number by the original number
260 - 28 = 232
232 ÷ 28 = 8.285714285714286
8.285714285714286 x 100 = 828.57%