A single 1080p Netflix stream will consume about 4Mbps.
If you just stream music and media and browse the net, that’s an easy way to benchmark. If you’re gaming, higher speeds will not increase performance of online gaming - this requires quite little and depends more on latency (satellite/star link vs cable/fiber etc). The higher speeds will only help with more concurrent users or game/media downloads (if you pirate media, for example).
10% of 300k. Ooooo. But not the bonus, of course, which is the real salary.