how to use BRRRR calculator with bridge loan

Hey All,

Not sure if I'm doing this right but when using the BP BRRRR calculator, if I was to get a bridge loan then refinance into a 30 year fixed.

For the 'purchase loan details'

Down payment, loan interest rate but then when it asks for amortized over how many years a bridge loan would be 1, refinancing after 6 months correct?

Then under refinance loan details, the loan amount would be 70% of ARV and I tried to be conservative with an 8% interest rate.

Not sure If I'm doing this right as Ive come back with some very skewed numbers.