How can I get the total interest function? idk

Calibri (Body) 11 Wrap Text Paste Format Merge & Center . | $ , % : ) | | ", Conditional Form A. 1 Input Area 2 Complex Cost 3 Down Payment Summary Calc Loan Amount No. Periods Monthly Rate Monthly Payment Total Interest Paid 1,850,000.00 $ 750,000.00 What f Collect Monthly Rent of Units in Complex $ 1,100,000.00 $2,000 #ofPmts per year 5 Years 6 APR 7 1st Payment Date PV of Future Rent $5,738.12 | cUMIPMTE4,13,2,1,30,1) Principal Payment Payment Date Beginning Balance Interest Paid Payment Ending Balance 1,842,677.08 1/18 s1,850,000.00$7,322.92 3,999.15 3,284.90 2,925.65 2,564.98 2,202.88 12/1/18 1,107.97 370.78 4ns NUMI NUMI NUMI NUMI NUM NUM 10/1/19 12/1/19 1/1/20 s NUM