**Desc:** A function that takes a price `i128` and decimals: `u32` and returns a `String` with a decimal point (e.g., input `75050,` `2` -> output `"750.50"`). **Goal:** Tests their Rust string formatting skills (which is surprisingly tricky in WASM/Soroban).
Desc: A function that takes a price
i128and decimals:u32and returns aStringwith a decimal point (e.g., input75050,2-> output"750.50").Goal: Tests their Rust string formatting skills (which is surprisingly tricky in WASM/Soroban).