Who is saying that A972200 "reduces most LAX rentals by 50%" ???

I'm looking at 3.5 day rental (Sat 3pm - Tues 9 pm) LAX (full-size impala) and with no code the base rate is $152, with taxes the total is $202. (I'm using Country residency = Canada, not USA).

With code A972200 the base rate is $132, but after taxes the total is $189.

The difference is that with the code, I'm charged:

- $0.53 per day (Energy Recovery Fee)
- $2.23 per day (Vehicle License Fee)

Without the code, I'm not charged at all for the "energy recovery fee", and the per-day vehicle license fee is $0.26 per day.

Can anyone explain why the these taxes or fees are different based on using this code vs no code?

Even code k444404 brings the base down to only $137, and the total to $183 (.26 vehicle license, no energy recovery fee).