Question about Colorado 2019 Form 104PN Lines 16 and 17

This may be difficult, because it pertains to Colorado forms. I am hopeful that there is someone familiar with Colorado forms and can answer.

I have a question that corresponds to specific lines in the Colorado tax form 104PN:

Looking at Form 2019 104PN:

Line 16. Takes Income from form 1040, Schedule 1 Line 5.
This amount includes 2019 K-1 ordinary profit of 30K, and 2018 K-1 ordinary loss 10K (suspended in 2018 due to shareholder basis limitation and carried to 2019).

Line 16 = 30K - 10K = 20K

What do I put in Line 17? Do I apportionate the amount to be entered in line 17 based on ratio of Gross Receipts from Colorado Sources/Gross Receipts from All Sourcess for my S Corporation multiplied by the amount in Line 16?

Gross Receipts from Colorado Sources = 50
Gross Receipts from All Sources = 100
Ratio = 50/100 = 0.5

Line 17 = Ratio x Line 16 = 20K x 0.5 = 10K?

Does this calculation look correct?

Thank you in advance.

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