Wholesale price: 1 Yuan/Jin× onion weight.

Distribution: 0.5 yuan/kg× onion leaf weight +0.5 yuan/kg× onion white weight =0.5 yuan/kg× (onion leaf weight+onion white weight) =0.5 yuan/kg× onion white weight.

Therefore, when the unit price of onion leaves and onions is half of the price of onions, the total amount is also half of the whole sales.

In addition: 0.5 onion weight × onion leaf price +0.5 onion weight × onion white price =0.5 onion weight × (onion leaf price+onion white price) =0.5 onion weight × 1 yuan/kg.

Therefore, under this condition, the total amount of sub-sales is also half of the total sales.