One match, in numbers
seat 140,000takes 46,000
seat 225,000takes 28,600
seat 315,000takes 17,400
the line · the three below add up to 12,000
46,000pays 3,000 · 1,800 · 1,200
54,000pays 2,000 · 1,200 · 800
62,000pays 1,000 · 600 · 400
12,000 sits under the line: seat one gets half (6,000), seat two 30% (3,600), seat three 20% (2,400), each on top of its own stake. If a 20,000 stake lands before the whistle, it takes seat three and the 15,000 drops under the line, where it pays 7,500 · 4,500 · 3,000 to the seats.