257.76% is the change from 232 to 830
Calculation steps:
[( 830 - 232 ) ÷ 232] x 100 = 257.76%
Formula
Percentage change = [(830 - 232) / 232] x 100
Subtract the new number by the original number
830 - 232 = 598
598 ÷ 232 = 2.5775862068965516
2.5775862068965516 x 100 = 257.76%