298.82% is the change from 170 to 678
Calculation steps:
[( 678 - 170 ) ÷ 170] x 100 = 298.82%
Formula
Percentage change = [(678 - 170) / 170] x 100
Subtract the new number by the original number
678 - 170 = 508
508 ÷ 170 = 2.988235294117647
2.988235294117647 x 100 = 298.82%