Hello everyone!

I am new in this forum. I face a problem with the following:

When I write
gen Demp = log10( numberofemployees/L. numberofemployees)
stata produce results
(718 missing values generated)
However, when I write a similar equation
gen Dincome = log10( operatingrevenue/L. operatingrevenue)
it gives me back
type mismatch r(109).

I have tested the data with "destring, replace" and I am sure that all data are numeric.

Any ideas for my issue?

Thank you in advance!