Nikon COOLPIX W300 Reference Manual page 146

C
Number of Images That Can Be Saved
The approximate number of images that can be saved can be checked on the screen
when shooting (A19).
Note that due to JPEG compression, the number of images that can be saved may vary
greatly depending on the image content, even when using memory cards with the same
capacity and the same image mode setting. In addition, the number of images that can be
saved may vary depending on the make of the memory card.
If the number of exposures remaining is 10,000 or more, the number of exposures
remaining display shows "9999."
Using the Menu
The Shooting Menu (The Common Shooting Options)
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