What is the IRR of project? How do you calculate

Years	Variables	0	1	2
CT Scanner Initial Purchase	1750000
Delivery, installation and training	175000
Annual maintenance contract	25000		25000	25000
Estimated annual scan volume	2000
Supply cost per scan 1	130		137.8	146.06
Technician salary and benefits 2	84000		88200	92610
Average charge per scan3	325		341.25	358.31
Expected useful life of the scanner	8 years
Estimated salvage value at end of period	250000
Annual Revenue			650000	682500
Annual Expense			369000	388800
Net Cash Flow			281000	293700
Discount rate	8.00%
PV of salvage			231481.4815	214334.7051
PV of future cash flows			260185.1852	251800.4115
NPV of project			491666.6667	466135.1166
IRR of project

How do you calculate IRR of project?