If a salaried worker doesn't get overtime, then every hour they work past 40 reduces their effective pay by 2.5%.
Each hour past the agreed upon (or expected) # of hours cuts into your actual life, and is worth a lot more (to the person working). Too bad many people don’t see this or don’t have any options.
You worked more hours but made the same amount of money. Therefore the amount you made per hour is lower than your usual amount.
But if you calculate hours worked and salaries. More often then not. There promotion for example made them earn less and less per hour.
But as someone wrote on hackernews: if your company is using the emotional path they don't have anything to offer on the rational level.
tl;DR: calculate your income per hour, not monthly salary!
Stealing this for my “don’t work for a startup” site!