It sounds like you need to change the page numbering format for the section that starts with chapter 16. Here's how you can do it:
- Go to the beginning of the section that starts with chapter 16.
- Double-click on the footer to open the footer area.
- In the Design tab that appears, click on the "Link to Previous" button to unlink the footer from the previous section.
- Click on the "Page Number" button in the Header & Footer section of the Design tab.
- Choose "Format Page Numbers" from the drop-down menu.
- In the Page Number Format dialog box, select "Continue from previous section" under "Page numbering."
- Click OK to close the dialog box.
- You should now see the correct page number in the footer for the current section.
If you want to start the page numbering at a specific number, you can also do that in the Page Number Format dialog box. Just select "Start at" and enter the number you want to start with.