If 5.5 is 55% what is 45%

4.5

Step-by-step explanation:

I assumed that 55% is 5.5 because a decimal must be there but 45% Should be at least 22.5.

Edit: The person above is right & reika in the comments but.. I had seen this problem differently, because you could do it in many ways therefore you move the decimal to the 4 so the answer would be 4.5 so 45%= 4.5