178.52% is the change from 298 to 830
Calculation steps:
[( 830 - 298 ) ÷ 298] x 100 = 178.52%
Formula
Percentage change = [(830 - 298) / 298] x 100
Subtract the new number by the original number
830 - 298 = 532
532 ÷ 298 = 1.7852348993288591
1.7852348993288591 x 100 = 178.52%