Answer:
$604.50
Explanation:
You want to know the total paid for 31 shares at $9 3/4 and 26 shares at $11 5/8.
Total paid
The total paid is computed the same as for any other purchase. It is the sum of the products of quantity and price each.
total = (31)(9 3/4) +(26)(11 5/8) = 604.50
Harrington paid $604.50 for the stock.