How much yellow phosphorus is needed to produce sodium hypophosphite?

In percentage terms, it is 37/ 100. For example, according to a ton. A ton of yellow phosphorus can produce up to 3.7 tons of phosphoric acid. Calculate, according to the current price, it is more cost-effective to sell yellow phosphorus directly now. Xingfa yellow phosphorus has take-away, but only one-fifth of the take-away before, and most of them are used as raw materials for their own use. The specification of industrial phosphoric acid is generally 85%. According to this calculation, a ton of yellow phosphorus can produce up to 3.7 tons of phosphoric acid.