IRR,”In finance menu on calculator:irr (-initial outlay, {cash flow 1, cash flow 2 June 20, 2017 mfadmin Finance and Accounting Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review. IRR,”In finance menu on calculator:irr (-initial outlay, {cash flow 1, cash flow 2 etc.})”