5100% is the change from 2 to 104
Calculation steps:
[( 104 - 2 ) ÷ 2] x 100 = 5100%
Formula
Percentage change = [(104 - 2) / 2] x 100
Subtract the new number by the original number
104 - 2 = 102
102 ÷ 2 = 51
51 x 100 = 5100%
Example