If 'BEAR' is coded as '25-22-26-9', how will 'TIGER' be coded?

The mapping rule reflects the backward alphabet tracking where $\text{Value}=27-\text{Forward Rank}$:
* $\text{B}(2)\to 27-2=25$
* $\text{E}(5)\to 27-5=22$
* $\text{A}(1)\to 27-1=26$
* $\text{R}(18)\to 27-18=9$

Applying this code conversion rule to 'TIGER':

* $\text{T}(20)\to 27-20=7$
* $\text{I}(9)\to 27-9=18$
* $\text{G}(7)\to 27-7=20$
* $\text{E}(5)\to 27-5=22$
* $\text{R}(18)\to 27-18=9$

This gives the numeric sequence 7-18-20-22-9.