How much do you think it costs to make a pair of Nike shoes in Asia?

> But if we bump the cost of freight, insurance, and customs from $5 to, say, $28, then they wholesale the shoes to Footlocker for about $75. And if Footlocker purchases Nike shoes for $75, then they retail them for $150. Everyone needs to fixed percentages to avoid losses.

I don't understand this paragraph. If Footlocker was okay with $50 profit/shoe, why do they need to claim $75 profit/shoe in their costs per shoe go up? The costs of handling the shoes, retail space, advertising, and labor are all fixed.