290% is the change from 230 to 897
Calculation steps:
[( 897 - 230 ) ÷ 230] x 100 = 290%
Formula
Percentage change = [(897 - 230) / 230] x 100
Subtract the new number by the original number
897 - 230 = 667
667 ÷ 230 = 2.9
2.9 x 100 = 290%
Example