A and B got married in 2015 and had an offspring a year after. On the fifth year of their marriage, however, A and B had lots of misunderstandings that resulted to their separation. A then left the conjugal home leaving their kid with his wife. Before B could file a petition for support, A voluntarily offered his wife a monthly support of P50,000.00 that B willingly agreed to. Upon the prodding of Bs friends, B demanded a higher amount of support which amounts to P200,000.00, from A considering that A has been receiving P400,000.00 a month. How much should A give as monthly support to B? Why?