Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
The pet store can buy a goldfish for $.25 and sell it for $.75. The owner plans to use the profits from goldfish sales to buy a new tank, which costs $100. After one week, he is 45% short of the price. How many goldfish did he sell that week?

### Response:
He was 45% short of the price so he was left with 55% of the price, or $55.
He sold 55/.5 = <<55/.5=110>>110 goldfish that week.
#### 110

