Download %56 percent 1 Minute Later Back To 0

[Samsung Galaxy Tab 3]

When I download stuff from the Internet it loads for a while (The Download) Like its 77 percent then I turn it off it comes back to 0 help please

 

[B. Diddy]

Welcome to Android Central, and sorry for the wait. What kind of stuff are you downloading? Are you saying that you're interrupting a download before it's done by turning off the device, or cancelling the download? If you interrupt a download, you have to start it all over again.