Do most people charge a set amount or is it better to go with a percentage of the rent?  

Fees and Contracts: - What are your management fees and how are they structured (flat fee, percentage of rent)?

So while there should be a percentage of equitable contribution, sweat equity also plays a factor.  

The actual percentage of people that get audited is tiny. 

We embrace S8 applicants, but screen them just like any other applicant.Many have an entitlement mentality and try to leverage their S8 voucher by pretending to be helpless:1) A percentage won't apply because they expect a landlord to waive application fees for them.2) Many cry broke and expect a landlord NOT to charge them a security deposit.3) Many of those same S8 tenants trying to avoid paying a security deposit, won't make an effort to call the list of nonprofits we send them that will pay their security deposit if they apply.4) A lot of them try to avoid paying for utilities.

Based on previous deals through this wholesaler I can average out wholesaler normal up charge percentage.

As for a percentage, I try and keep a certain percentage in RE, PM’s, Stocks, Infinite Banking Life Ins, and I’ve added Bitcoin to my mix.

For example:  VRBO (good for guests, but puts hosts at risk) offers a percentage down at the time of booking. 

One incentive I have seen people use to get good cleaners is to give them a certain percentage of the rental income (1-2%) plus their cleanings feeds.

Is there a rough percentage that you use when analyzing?