The amount of discount in the first store 950 x 6/100 = $<<950*6/100=57>>57.
So, the device costs 950 - 57 = $<<950-57=893>>893 in the first store.
The amount of discount in the second store is 920 x 5/100 = $<<920*5/100=46>>46.
So, the device costs 920 - 46 = $<<920-46=874>>874 in the second store.
The difference in price is 893 - 874 = $<<893-874=19>>19.
#### 19