The challenge I am having with the IRR is that it was given as 210, but when I calculate it, the figure is different.

NPV = 466,291

NPV ('000) = 466

IRR = 210 -466

IRR = -256

IRR = (-256 /5)

IRR = -51

IRR = -51 /-256

IRR =0.2

IRR = 20 %

Project 2

Cash flows

500,000

machinery

1,616,000

scrap value

301,000

useful life

5 years

Is the discount rate the same as the cost of capital? Should I raise the discount rate on a positive NPV or lower it to get the IRR?