summerize this A fixed-rent lease assesses a flat fee that must be paid periodically. The most common example of a fixed-rent lease is a residential lease. In this arrangement, the tenant agrees to pay a specific amount in rent every month. The amount of the rent does not vary from month to month, and the tenant is not responsible for paying out additional sums for expenses. Unlike fixed-rent leases, percentage lease rents change over time. Because they are based in whole or in part on the tenant's income, the amount of the rent may vary from month to month. Percentage leases are used in commercial settings, where the tenant is a business. The landlord receives a report of the tenant's total income for the month and assesses a percentage of the proceeds as the monthly rent. Percentage leases come in many different forms and may be based on gross or net sales, or even a combination of percentage of income plus a flat fee