Why the storage estimate doesn't make sense

[AC Question]

When I check the internal memory storage estimate it shows my apps took up 100 GB!!! although total storage space on my device is only 8 GB!!!!
What's wrong with my cell?!

 

[the tall guy]

Hi, are you sure you read it correctly, it maybe read 1.0 GB or 100 MB? can you upload a screen shot so we can have a look?