The document discusses five methods for calculating interest on drawings from a partnership. Method 1 calculates interest as the amount withdrawn multiplied by the interest rate and time period. Method 2 assumes a 6 month time period if the withdrawal date is unknown. Method 3 calculates interest for fixed monthly withdrawals by averaging the time periods. Method 4 applies the same approach for quarterly withdrawals. Method 5 uses the product method to calculate interest for varying withdrawal amounts and time periods.