To me, it's less about a specific number and more about ensuring all core logic is covered. You can hit your coverage goals by by testing getters/setters for ex

To me, it's less about a specific number and more about ensuring all core logic is covered. You can hit your coverage goals by by testing getters/setters for example, but that doesn't mean that your coverage is effective. Having core business logic covered will give you the confidence in fixing, refactoring, updating those key pieces of the application.