James is a first-year student at a University in Chicago. He has a budget of $1000 per semester. He spends 30% of his money on food, 15% on accommodation, 25% on entertainment, and the rest on coursework materials. How much money does he spend on coursework materials?
Accommodation is 15% * $1000=$<<15*.01*1000=150>>150
Food is          30% * $1000=$<<30*.01*1000=300>>300
Entertainment is   25% * $1000=$<<25*.01*1000=250>>250
Coursework materials are thus $1000-($150+$300+$250) = $300
#### 300