The posts from gsc and BoomChaCha pointed to differences in the correct way to calculate. I just telephoned Affin Bank to check up what is the correct method.
1) For 10k for 2 years at 4.58% p.a., 1k in Affin Gold at 0.85% p.a
2) For 100k for 2 years at 4.58% p.a., 10k in Affin Gold at 2.15% p.a.
Did not seem to be 9k FD and 1k SA, nor 90k FD and 10k SA. Not 90%:10% but 10:1.
Affin website shows the different savings products rates displayed as "bands" instead of "tiers".
All the savings products are actually tier-type except special for Affin Gold which is different as "flat" or one rate only for a savings balance.
Banks normally have a tendency to use jargon and carelessly lump differences due to imprecise miscommunication and lack of clearcut examples. This is especially among those banks whose command of English is more confusing than clear. Some banks are outstanding for either good reasons or for the wrong reasons.
Normal size FD 10,000 x 4.58 / 100 x 2 = 916
Affin Gold 1,000 x 0.85 / 100 x 2 = 17
Total collection 916 + 17 = 933
Rate 933 / 11,000 x 100 / 2 = 4.240909... p.a.
Bigger size FD 100,000 x 4.58 /100 x 2 = 9160
Affin Gold 10,000 x 2.15 /100 x 2 = 430
Total collection 9,160 + 430 = 9,590
Rate 9,590 /110,000 x 100 / 2 = 4.35909... p.a
Affin Gold savings also provides "free" insurance up to a maximum limit. Check with bank for actual details.
Note that the 10:1 ratio is better than the 90% or 9:1 ratio.
The bank person says this explanation is for all Affin Bank and not different for different branches. So check out what is actually happening at your branch.
I was told a few days ago that the promo ends at end of this year. Affin Islamic have a different set of promos ending on 30th August which are differnt in details from the set of promos at Affin Bank don't get confused.
Thanks for the clarification on the 10:1 ratio.
As long as the amount is rm10k and above in SA, the effective rate is 4.359 or 4.36%.