What are the period costs per unit associated with Product DCT121?

A stock has a historical volatility of 39%. The data shows significantly increased volatility in recent data and significantly lower volatility in older data

The implied estimate of the unconditional volatility using the GARCH model is most likely to be which of the following? A) 12% B) 25% C) 45% D) 85%

Operating margin is defined as:

A) operating income or loss divided by net sales revenues. B) operating income or loss divided by total operating expenses. C) net sales revenues divided by net income or loss. D) net assets divided by net liabilities.