Please calculate FOH allocation from Assistant Department to Production Department with Aljabar Method

Here is the data on FOH (BOP) Budget each department at PT. JAYA in 2020: Production Department: Assistant Department: - P Dept. 45.000.000 - A Dept. 7.000.000 - Dept 25.000.000 -B Dept. 10.000.000 Percentage allocation of FOH from Assistant Department to Production Department are as belows: Dept. Service Assistant Dept Production Dept B P Q Service of A Dept 20% 50% 30% Service of B Dept 15% 25% 60%