Yes. As you can see, it doesn't tell me the amount he made last year. So if a guy has less than 2 bird years, the max salary (like the one in the picture) is 120% of that, no problem.
If a guy has 3+ bird years, the max salary is 15,000,000 or so (league maximum based on experience), so I have no idea (without loading up an old archived save) of what last years salary was.
As an example, we'll take Nate Van Exel. Nate made (roughly) 3 million last year or so. Celtics tells me 120% of last years salary, which would be about 4 million as his intention.
This is what NVE's page looks like to me:
There's no way for me to tell 120% of his prior years salary. Digging up old saves is just a PITA.
To Recap:
Basically:
2 or less bird years:
120% of last years salary is fine to say
3+ bird years:
tell me the starting salary.