SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Write the given sets
![77\%\text{ of a person's credit card purchases are \$50 and more}](https://img.qammunity.org/2023/formulas/mathematics/college/gr346wu97lofl1t321ngnkp5xayfmigjwx.png)
STEP 2: find the complement
The complement will be the percentage that cannot purchase $50 and more.
Since percentages equal 100, therefore the complement will be:
![100\%-77\%=23\%](https://img.qammunity.org/2023/formulas/mathematics/college/9m5smpv4saag1xk9e9mbsbvt1zp0sqa5fg.png)
Hence, the answer in % is given as 23