Use:

=(1+RATE(50,-115,5000))^52-1
will give you 33.87%

or simply
=RATE(50,-115,5000)*52
will give you 29.25% ... this is an approximation

Mangesh



"alimirfarhad"
wrote in message
news:alimirfarhad.1umnyg_1125489941.9302@excelforu m-nospam.com...

I wnt to calculate IRR with weekly basis cash flow in micro financing.
Principal investment is $ 5000.00 and weekly installment is $115 for 50
weeks. I want know the formula. simple formula is not working here since
in Excel the default is may be yearly basis.


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alimirfarhad
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