317.78% is the change from 45 to 188
Calculation steps:
[( 188 - 45 ) ÷ 45] x 100 = 317.78%
Formula
Percentage change = [(188 - 45) / 45] x 100
Subtract the new number by the original number
188 - 45 = 143
143 ÷ 45 = 3.1777777777777776
3.1777777777777776 x 100 = 317.78%