Investors & landlords

I think i got it but want to make sure...this is 2020 value screenshot and i paid 256k in 2002. Using your formula and below nos. i am 28% land value...which is 125k divided by 443k. So cost is 256k (original buy price) and 28% of that is 71k and that should be cost of land. Did i get this right? Just wanted to double check. Thanks a lot for your help and detailed explanation.