Non-profit art gallery looking for a "standard" bonus incent

[Guest Jean Lauderdale]

I am the Board President for a small non-profit art gallery. This past fiscal year, earned and contributed income exceeded our budgetary goals by 10% while expenses were only 1% over budget. We want to pay a bonus to the 2 part-time staff members (20 hours/week each). The Board agreed to a bonus last spring, but no plan was set as to how to determine the amount. Are there "standard" calculations tied to budgetary indicators that are used for bonus incentives in retail, educational industries such as ours. We want to appropriately reward their hard earned success this year, as well as set an annual compensation formula into this next year's budget. Thank you for any suggestions!