A large apartment complex has \( 1,500 \) units, which are filling up at a rate of \( 10 \% \) per month. If the apartment complex starts with \( 15 \) occupied units, what logistic function represents the number of units occupied over time?
\( N ( t ) = \frac { 800 } { 1 + 114 e ^ { - 0.10 t } } \)
\( N ( t ) = \frac { 1500 } { 1 + 99 e ^ { - 0.10 t } } \)