The following table shows the value of a house in Ockendon for the years 1990 and 1991.
Ockendon
| Year | 1990 | 1991 |
|---|---|---|
| Value (£) | £80 000 | £88 000 |
Taking 1990 as the base year, work out the value of the house in Ockendon in 1991 as an index number.
Using 1990 as the base year, the value of a house in Tilbury in 1991 as an index number is 108.5. Interpret and compare the index numbers for Ockendon and Tilbury in 1991.
