Chloe Bennet is an organic market trader in York. She recorded the following change in sales when she reduced the price per punnet of her blueberries.
| Price | Sales | |
|---|---|---|
| Week 1 | £4.00 per punnet | 150 punnets |
| Week 2 | £3.50 per punnet | 180 punnets |
Using the data in Table 1, calculate the total revenue in Week 1 and Week 2. Comment on the price elasticity of demand for blueberries sold by Chloe.