The user of-course can already implicitly work out this information from comparing the fee-rate with the actual fee.

I think that it would be useful for people not wanting to do this arithmetic in their head.

return hash;
    }
    
    uint256 GetWitnessHash() const;
    
    CAmount GetValueOut() const;
    
    
    
    double ComputePriority(double dPriorityInputs, unsigned int nTxSize=0) const;
    
    unsigned int CalculateModifiedSize(unsigned int nTxSize=0) const;
    
    /**
     * Get the total transaction size in bytes, including witness data.
     * "Total Size" defined in BIP141 and BIP144.
     * @return Total transaction size in bytes
     */
    unsigned int GetTotalSize() const;
    bool IsCoinBase() const
    {
        return (vin.size() == 1 && vin[0].prevout.IsNull());
    }
    friend bool operator==(const CTransaction& a, const CTransaction& b)
    {
        return a.hash == b.hash;
    }
    friend bool operator!=(const CTransaction& a, const CTransaction& b)