336.73% is the change from 98 to 428
Calculation steps:
[( 428 - 98 ) ÷ 98] x 100 = 336.73%
Formula
Percentage change = [(428 - 98) / 98] x 100
Subtract the new number by the original number
428 - 98 = 330
330 ÷ 98 = 3.36734693877551
3.36734693877551 x 100 = 336.73%