Relative to how much you earn annually your savings seems a bit on the low side.
Considering how much money you make every year you don't seem to have all that much in savings.
どちらも「年収の割には預金が少ない」という言い方です。
1) Relative to how much you earn annually your savings seems a bit on the low side.
relative to で「〜の割に・〜と比較すると」
savings は「預金・貯金」
2) Considering how much money you make every year you don't seem to have all that much in savings.
considering で「〜の割には・〜を考慮すると」
ご参考になれば幸いです!