What is a good formula for splitting profits on a property?

[N/A N/A]

I am involved in a 3-way investment on a rental property and we are being forced to sell because of a DOT project. Our profit on this property will be approximately $75,000 and we need to figure out how to split this up. Being close family members, we weren't too concerned about figuring this out we bought the property.

I would really appreciate any suggestions from real estate investors experienced with partnership investments like this.

Here are the figures for the capital and work/mangement invested by each party.

Investor #1:
Invested $150, 000 by taking out a regular home loan.
Lived at the property and payed "rent".
Did 85% of the maintenance, improvements and rental property management.

Investor #2:
Invested $75,000 from a home equity line of credit.
Did 0% of the maintenance, improvements and rental property management.

Investor #3:
Invested $25,000 from a home equity line of credit.
Did 15% of the maintenance, improvements and rental property management.

Thank you!