Deductions & credits

Thank you so much Marilyn. I did find the figures but they dont seem to be adding up. 

Form 8829 line 36 says 88.920; line 37 Land value 5,000; line 38 Basis of Building  83.920

but Form 4562 says Cost (net of land) 38.920; Land 50,000. 

Do these numbers look correct or is there something off?