Keisha was hired on February 6, 2004. She worked 39 hours per week and was paid $16.00 per hour on a weekly basis. In March of 2023, Keisha worked 15 hours of overtime and was paid time and one half for each overtime hour. She has not worked any other overtime. In late April, Keisha resigned her position, effective May 12. Calculate Keisha's insurable earnings to be reported in Block 15B.