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

1. At which site should Subway open the new restaurant? (2 marks)
2. If the weights for Space and Traffic density are reversed, how would this affect the decision? (2 marks)