Please reply with a detailed calculation process step by step and explanation , with an attached excel or word file for a better unserstanding. thank you!

1. Subway, with more than 3,000 outlets in Canada, is planning for a new restaurant in Brampton, Ontario. Three locations are being considered. The following table gives the factors for each site.

Factors Weight Location A Location B Location C Space 0.30 60 70 80 Costs 0.25 40 80 30 Traffic Density 0.20 50 80 60 Neighbourhood Income 0.15 50 70 40 Zoning laws 0.10 80 20 90