678.57% is the change from 28 to 218
Calculation steps:
[( 218 - 28 ) ÷ 28] x 100 = 678.57%
Formula
Percentage change = [(218 - 28) / 28] x 100
Subtract the new number by the original number
218 - 28 = 190
190 ÷ 28 = 6.785714285714286
6.785714285714286 x 100 = 678.57%