Answer: 6.51%
Step-by-step explanation:
To get the interest rate at which the deal will be fair
Annual payment per year/ cost × 100
Perpetuity = D/r
476000 = 31000/r
r = 31000÷ 476000
r = 0.06512
r = 0.06512 × 100
r = 6.512%
Where D is the dividend
r is the rate