function pricePerSlotPerSecond(request) { return request.ask.pricePerBytePerSecond * request.ask.slotSize } function maxPrice(request) { return ( request.ask.slots * request.ask.duration * pricePerSlotPerSecond(request) ) } function payoutForDuration(request, start, end) { return (end - start) * pricePerSlotPerSecond(request) } module.exports = { maxPrice, pricePerSlotPerSecond, payoutForDuration }