Find the difference between sales and use tax?

Both sales and use tax rates are 6%.

Michigan Sales Tax Act, Act 167 of 1933, provides for the levy, assessment and collection of a specific tax on the retail sale of tangible personal property, which embrace all goods, wares, merchandise, products and commodities, all tangible things and substances which are dealt in, capable of being possessed or exchanged.

Michigan Use Tax Act, Act 94 of 1937, provides for the levy, assessment and collection of a specific tax (use tax) on the storage, use or consumption in this state of tangible personal property and certain services.