242.98% is the change from 242 to 830
Calculation steps:
[( 830 - 242 ) ÷ 242] x 100 = 242.98%
Formula
Percentage change = [(830 - 242) / 242] x 100
Subtract the new number by the original number
830 - 242 = 588
588 ÷ 242 = 2.4297520661157024
2.4297520661157024 x 100 = 242.98%