Wordpress developer for ROI Ads Spend Calculator

Hi, would appreciate few quotes on ROI calculator for my website, similar to the examples below.

Additionally would be great to display it in few other currencies if possible for the end user if they choose so. (Gravityform only plugin I know that has multi currency) but this feature is not critical.

Here is few examples:

https://connectio.io/tools/roi-calculator/

https://www.hubspot.com/ads-calculator

Many thanks for your time.

Best wishes