I have a couple syndicated deals and i want to find the true yield/profit. Since we are getting paid back daily (from SFS) what is the formula to figure out how much i am actually making

For instance.
$85,000 paying back 99 450 with nightly payments 5 days a week for $526. 3% fee on each payment.
I am getting paid daily on this. So what is my yield?

Would love to know the formula.