I have a width entry and a height entry entered in columns

W cm [defined as a number field with precision 2 decimal places]

H cm [defined as a number field with precision 2 decimal places]

I have a formula to bring these together into one field:

{W cm} & " x " & {H cm}

Result is incorrect because …

19.68 25.08

Becomes

19.685 x 25.0825

Can anybody tell me why this is happening please?