457.78% is the change from 45 to 251
Calculation steps:
[( 251 - 45 ) ÷ 45] x 100 = 457.78%
Formula
Percentage change = [(251 - 45) / 45] x 100
Subtract the new number by the original number
251 - 45 = 206
206 ÷ 45 = 4.5777777777777775
4.5777777777777775 x 100 = 457.78%