Suppose a retailer sells desks with the following business data:

Annual demand $($D$)$: $200$ desks per year

Setup $($order$)$ cost per order $($S$)$: $$1000$

Unit cost of production $($C$)$: $$100$ per desk

Holding$/$carrying cost $($I$)$ as $\%$ of unit cost: $20\%$

What is the economic order quantity for minimizing total cost? Round the number to nearest whole number.