Reworded your clarification for my own help: A German makes 10 widgets in 5 hours and bills 4 hours. The German achieves 2.5 widgets per billed hour. An Ameri

Reworded your clarification for my own help: A German makes 10 widgets in 5 hours and bills 4 hours. The German achieves 2.5 widgets per billed hour. An American makes 10 widgets in 5 hours and bills 6 hours. The American achieves 1.67 widgets per billed hour.