#anyway for the record p= original principal r= rate and n= number of times compounded | Explore Tumblr Posts and Blogs

stylishanachronism · 6 months

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PSA: if you use a formula that has Nothing to do with the problem you are trying to solve, and it gives you the wrong answer (because it is the wrong formula) it is neither my fault nor my problem that the amount of money you have earned is not the amount you were expecting.

#did I have to do p((1+r/n)^n)=x solve for X out long hand to prove it? yeah #thank fuck that used to be a party trick #but yeah shockingly (p*r)+p does not equal compound interest especially for a period not divisible by twelve #had a couple roll over a cd and get very mad at me that the interest they earned was not what their math problem had come up with #‘oh it’s always been accurate before!!!!1! >:(‘#my good dudes we’re rolling a 11 month cd that was previously rolled from a 14 month cd The Fuck It Did #anyway for the record p= original principal r= rate and n= number of times compounded #you can’t actually subtract n unless n is 12 exactly because the rate is generally an *a*py (annual (as in a year) percentage yield)

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