Answer:
$660
Explanation:
We know that 33% of the price is equal to $217.80 and we need to know how much is 100% of the price. So, we can calculate the 100% as follows:
[tex]100\text{ \% }\times\frac{\text{ \$217.80}}{33\text{ \%}}=\text{ \$660}[/tex]Therefore, the price yesterday was $660.