Hi @rohan12334 

As you say, no JS in an email.

If it’s a simple calculation, you may be able to do this in Klaviyo using filter variables and include that in your email. More info here: https://help.klaviyo.com/hc/en-us/articles/360058466052

For example, if the formula is something like Value Today=Value in their cart x (1+annual growth rate) ^ raised to the power of the Number of Years. You can calculate the static value I’ve underlined, then pull in the variable part, which is the value of their cart, and use variable filters to calculate Value Today.

So in your abandoned checkout email:

If you had invested ${{ event|lookup:'$value'}} in gold 5 years ago, that investment would now be worth ${{ event|lookup:'$value'|multiply:1.3 }}

This is for a Shopify event variable and where 1.3 is just a random number I’ve used in my example but you’d use the growth rate and 5 years to get your multiplier.

I’m not sure if this is exactly what you’re after - it doesn’t consider that they could purchase more gold for their money 5 years ago (assumption!)…but maybe a starting point for you.

Regards

Andy