Compound Interest Formula KeyChain

Keychain with Compound Interest formula, i bought a chain in AliexpressLink: https://pt.aliexpress.com/item/1005005612349048.html?spm=a2g0o.productlist.main.1.70c6JdcoJdco5p&algo_pvid=3687f634-f134-4c80-9c2a-7d4dc9a6af5d&algo_exp_id=3687f634-f134-4c80-9c2a-7d4dc9a6af5d-0&pdp_ext_f=%7B%22order%22%3A%225180%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21EUR%212.99%211.10%21%21%2122.91%218.41%21%402141131717421267608696206ebdc6%2112000033747054168%21sea%21PT%210%21ABX&curPageLogUid=MZc98ET421qL&utparam-url=scene%3Asearch%7Cquery_from%3A Thanks ;)