Im looking for excel formulas that will answer the yellow blank squares and how to do them. Thank you.

New York State Savings and Loan Mortgage Calculator - Payment Value $225,000 4 Mortgage Amount 5 Duration in Yrs 6 Payments/yr 7 Interest Rate/yr 8 Periodic Payment 20 6.50% 10 New York State Savings and Loan Mortgage Calculator - Payment Value 14 Mortgage Amount 15 Duration in Yrs 16 Payments/yr 17 Interest Rate/yr 18 Periodic Payment $250,000 25 12 ($1,750.00) 20 21 New York State Savings and Loan Mortgage Calculator - Payment Value 23 24 Mortgage Amount 25 Duration in Yrs 26 Payments/yr 27 Interest Rate/yr 28 Periodic Payment 29 30 31 32 $175,000 12 6.75% ($1,400.00) New York State Savings and Loan Mortgage Calculator - Payment Value 34 Mortgage Amount 35 Duration in Yrs 36 Payments/yr 37 Interest Rate/yr 38 Periodic Payment 39 40 30 4.75% New York State Savings and Loan Mortgage Calculator - Payment Value 42 43 44 Mortgage Amount 45 Duration in Yrs 46 Payments/yr 47 Interest Rate/yr 48 Periodic Payment 49 Ballon Payment 50 51 52 30 12 4.75% ($1,200.00) (10,000.00)