RRSP contribution room left with RPP contributions

I called CRA to inquire about some ambiguity as to whether RPP contributions on Box 20 of the T4 slip reduce the overall RRSP contribution room. I contribute 8% towards the RPP while the employer matches it. 2022 was the first time I contributed to a RPP (new job). My question to the experts is does the RRSP room reduce by the amount of 16% of my combined RPP contributions or is it only reduced by 8% (my contribution). I was advised by the CRA agent that my RRSP room is reduced by box 52 amount of my T4 or 16%. When I use Turbotax it shows no deductions from the RRSP overall limit other than the amount I contributed towards a RRSP in 2022. A quick response would be greatly appreciated.