246.15% is the change from 13 to 45
Calculation steps:
[( 45 - 13 ) ÷ 13] x 100 = 246.15%
Formula
Percentage change = [(45 - 13) / 13] x 100
Subtract the new number by the original number
45 - 13 = 32
32 ÷ 13 = 2.4615384615384617
2.4615384615384617 x 100 = 246.15%