剰余

1. Origins, structure, and basic meaning

• Structure: 剰余 is read as じょうよ and is a noun for a remainder or surplus left after division, allocation, or expenses.
• Basic usage: Mathematics uses 割り算の剰余, while finance uses 費用を引いた剰余.

2. Common pitfalls and similar expressions

• Mathematics and finance
  • In division it is a remainder; after expenses it is a surplus.
• Difference from 利益
  • 利益 emphasizes profit as a gain, while 剰余 emphasizes what remains after a calculation or deduction.