QUICK ANSWERStart with the tool that matches your immediate input.
Open Overtime Pay Calculator first when its stated purpose matches the result you need now. Use Percentage Calculator only when it solves a separate next task.
This guide is for founders, freelancers, marketers, sellers, and small teams. Start with Overtime Pay Calculator when your immediate task is to open the original Overtime Pay Calculator and complete the task with a focused browser-based interface. Move to Percentage Calculator only when you also need to open the original Percentage Calculator and complete the task with a focused browser-based interface.
The goal is not to run two tools automatically. It is to finish the first narrow task, inspect its result, and then decide whether Percentage Calculator solves a genuinely different next step.
Both tools sit in Business & Marketing, but they handle different inputs or outcomes. Keeping those roles separate reduces repeated work and makes verification easier.