Jpeg Is very big size up to 100 Mb for a small design

[creative ashour]

any suggestions for this problem, as you see the design is 1080 px * 1080 px 

resolution 72 pixel/ inch

when I export as png the png size is in kb " Normal " 

why jpeg is behaving like that?

[c.pfaffenbichler]

Try the Script from 

https://community.adobe.com/t5/photoshop/inflated-jpg-file-size-photoshop-document-ancestors-metadat...

to see if Ancestors Metadata is the root of the issue.