Gamma Enterprise manufactures a product in two sequential departments. On 1 April 2024, Department B had 2580 units, which were 35 per cent complete as to conversion cost. During April, 15001 units were completed and transferred from Department A to Department B. On 30 April, Department B had 5926 units in stock, which were 30 per cent complete as to conversion costs. Compute the number of units that were completed and transferred from Department B during the month of April 2024