Using Image intervention to resize images

Hello, Am using am intervention to resize my images this is the code

 $image->resize(208,130)->save(storage_path('app/public/'.$gameUploadFolder.'/'.$this->folderName.'/'. $this->fileNameToStore), 100);

it works nice and am using the 100 at the end to get the best quality possible from the image after resizing but it just doubled the image size without affecting the image quality the image stays the same when i removed the 100 from the end and decreased the image size too why is that.