The bids and bidders in a Dutch auction to sell 20,000 shares are as follows:

| Bidder | Number of Shares | Price (USD) |

|--------|------------------|-------------|

| A | 3,000 | 80 |

| B | 2,000 | 73 |

| C | 5,000 | 90 |

| D | 6,000 | 85 |

| E | 9,000 | 70 |

| F | 4,000 | 84 |

| G | 8,000 | 86 |

At what price are the shares sold?