Laundry mat calculation


As per discussions with commercial laundry mat I took all the nameplate ratings of all the washers and all the dryers then multiplied by 1.732 for 3 phase phase. Lighting would be considered 100% I think it would be on all day which is more than three hours also calculated at 100% I then have the total VA of all appliances

I keep reading and seeing other guys installing a demand factor there is no demand factor for commercial drivers only for residential I’m correct anybody know different?