Playground sample fix

playground.html

 
 | Unit Price | Qty | Discount | Subtotal |
 | ---: | ---: | ---: | ---: |
-| $1.23 | 2 | 10% | =A\\*B*(1-C) FILL |
+| $1.23 | 2 | 10% | =A*B*(1-C) FILL |
 | $4.99 | 6 | | |
 | $0.99 | 1 | 25% | |
 | Total | | | =SUM(D:D) |