What is the AddPriceBug parameter for in the strategy settings?

: Strategy settings

AddPriceBug: Parameter modifiers depending on PriceBug. Similar to other modifiers, adds PriceBug dependency (there is a separate parameter MShotAddPriceBug in munches.) The value of PriceBug is in the report. The recommended value of this parameter: 0.2.
Use it to buy further from the current price during exchange lags.