A̳ p̳a̳i̳r̳ o̳f̳ s̳h̳o̳e̳s̳ m̳a̳r̳k̳e̳d̳ P̳400 i̳s̳ t̳o̳ b̳e̳ d̳i̳s̳c̳o̳u̳n̳t̳e̳d̳ b̳y̳ 20%. H̳o̳w̳ m̳u̳c̳h̳ w̳o̳u̳l̳d̳ o̳n̳e̳ s̳a̳v̳e̳ w̳h̳e̳n̳ b̳u̳y̳i̳n̳g̳ t̳h̳i̳s̳ p̳a̳i̳r̳ o̳f̳ s̳h̳o̳e̳s̳? H̳o̳w̳ m̳u̳c̳h̳ i̳s̳ t̳h̳e̳ s̳e̳l̳l̳i̳n̳g̳ p̳r̳i̳c̳e̳ o̳f̳ t̳h̳e̳ s̳h̳o̳e̳s̳?​