675% is the change from 28 to 217
Calculation steps:
[( 217 - 28 ) ÷ 28] x 100 = 675%
Formula
Percentage change = [(217 - 28) / 28] x 100
Subtract the new number by the original number
217 - 28 = 189
189 ÷ 28 = 6.75
6.75 x 100 = 675%
Example