Kelly started with $660.00 in her savings but every time she did not complete her homework assignments, she lost $5.00. She lost nothing during her first 6 years but in her seventh year she failed to complete 4 assignments. During her eighth year, she completed every assignment. During her ninth year, she failed to complete 6 assignments and during her tenth year, she failed to complete three assignments. How much did she have in savings at the end of ten years?