279.05% is the change from 105 to 398
Calculation steps:
[( 398 - 105 ) ÷ 105] x 100 = 279.05%
Formula
Percentage change = [(398 - 105) / 105] x 100
Subtract the new number by the original number
398 - 105 = 293
293 ÷ 105 = 2.7904761904761903
2.7904761904761903 x 100 = 279.05%