If 831014 passengers travel everyday through Chiang Mai airport, 468945 passengers travel through Nakhon Ratchasima airport, 531043 passengers travel through Pak Kret airport and 463635 passengers travel through Bangkok airport, how many passengers in total travel through these four cities everyday?

One ticket to a show costs ฿ 40. Thurian buys a total of 5 tickets for the show using a coupon that gives her a 15% discount. Kulap buys 6 tickets using a coupon that gives a 25% discount. How much more did Kulap pay than Thurian?