Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date(s) | Venue | City | Ticket price(s) | Ticket sold / available | Ticket grossing |
| --- | --- | --- | --- | --- | --- |
| July 26, 1986 | Merriweather Post Pavilion | Columbia, Maryland | $16.50 / $11.50 | 13,000 / 13,000 (100%) | $176,267 |
| July 28, 1986 | Saratoga Performing Arts Center | Saratoga Springs, New York | $15 / $10 | 20,000 / 20,000 (100%) | $218,735 |
| July 29, 31, August 1, 1986 | Boston Common | Boston, Massachusetts | $19.50 / $17.50 | 37,500 / 37,500 (100%) | $667,065 |
| August 2, 6, 1986 | Jones Beach Theatre | Wantagh, New York | $22 / $20.50 / $17.50 | 20,600 / 20,600 (100%) | $376,326 |
| August 4, 1986 | Garden State Arts Center | Holmdel, New Jersey | $18.50 / $11 | 10,600 / 10,600 (100%) | $156,647 |
| August 10–11, 1986 | Chastain Park | Atlanta, Georgia | $22 / $20.50 / $17.50 | 12,702 / 12,702 (100%) | $259,545 |
| August 14, 1986 | Riverbend Music Center | Cincinnati, Ohio | $20 / $11.50 | 16,289 / 16,289 (100%) | $251,000 |
| August 15, 1986 | Freedom Hall Arena | Louisville, Kentucky | $10 | 15,600 / 15,600 (100%) | $156,310 |
| August 16, 1986 | Indiana State Fair | Indianapolis, Indiana | $14.50 / $12.50 | 16,287 / 16,287 (100%) | $225,965 |
| August 22, 1986 | Canadian National Exhibition Stadium | Toronto, Ontario | $23.50 / $19.50 | 25,370 / 25,370 (100%) | $465,286 |
| September 1, 1986 | The Muny | St. Louis, Missouri | $20.50 / $18.50 / $16.50 | 9,846 / 9,846 (100%) | $189,980 |
| September 8, 1986 | Red Rocks Amphitheatre | Denver, Colorado | $24.40 / $22 / $19.80 | 8,950 / 8,950 (100%) | $203,854 |
| September 12, 1986 | California Exposition & State Fair | Sacramento, California | $17.50 | 8,273 / 8,500 (97.3%) | $144,778 |
| September 13, 1986 | Shoreline Amphitheatre | Mountain View, California | $18.50 / $15.50 | 15,211 / 15,211 (100%) | $256,782 |
| September 14, 1986 | Concord Pavilion | Concord, California | $22.50 / $15.50 | 8,333 / 8,333 (100%) | $152,458 |
| September 16, 1986 | Fresno Convention Center | Fresno, California | $17.50 | 5,908 / 5,908 (100%) | $99,715 |
| September 18, 1986 | San Diego Sports Arena | San Diego, California | $25 / $18.50 | 9,051 / 9,051 (100%) | $172,092 |
| September 19, 1986 | Pacific Amphitheatre | Costa Mesa, California | $24.75 / $15 | 13,946 / 18,764 (74.3%) | $294,954 |
| November 30 - December 1, 1986 | Neal S. Blaisdell Center | Honolulu, Hawaii | $22.50 - $17.50 | 17,600 / 17,600 (100%) | $362,313 |
| Total | Total | Total | Total | 285,066 / 290,011 (98.3%) | $4,830,072 |
Question:
What was the ticket price at Red Rocks Amphitheatre?
Answer:
$24.40 / $22 / $19.80