Kelsey Has Been Making Soy Candles for Friends and Family

Multiple Choice

Kelsey has been making soy candles for friends and family for many years. Recently she debated making an official website to sell her candles to the general public. Her variable cost is $4.20 per unit, and she would sell each candle for $10.00. Her fixed costs will be $418.00 per month. How many units would she need to sell per month, on average, to completely replace her monthly salary of $4,268? Round your final answer to the nearest whole unit.

A) 370 units
B) 663 units
C) 664 units
D) 808 units