290.38% is the change from 104 to 406
Calculation steps:
[( 406 - 104 ) ÷ 104] x 100 = 290.38%
Formula
Percentage change = [(406 - 104) / 104] x 100
Subtract the new number by the original number
406 - 104 = 302
302 ÷ 104 = 2.9038461538461537
2.9038461538461537 x 100 = 290.38%