Battery health drop by 88% in iPhone 14

Hii bro . I have purchased iPhone 14 at jan’23
The battery health drop was slighter at first . But after 17.1 update it drop from 91 % to 88% just 1 month
Is it normal ?

hello bro, overall 1% a month is normal. do you follow any charging practice as suggested in our channel?

also how is your usage? gaming or just normal usage?

Yes .11 to 20 kulla charge potruven bro.

Normal usage only bro . Upto to 7to 8 hrs sila time kamiya irukum usage .

ok bro. continue the same and it will be maintained to reach that 2.5 years average lifetime to reach 80%.