820% is the change from 25 to 230
Calculation steps:
[( 230 - 25 ) ÷ 25] x 100 = 820%
Formula
Percentage change = [(230 - 25) / 25] x 100
Subtract the new number by the original number
230 - 25 = 205
205 ÷ 25 = 8.2
8.2 x 100 = 820%
Example