asset depreciation calculation based on net book value adjustment

currently I have one asset depreciated based on acquisition value, I want to depreciate using netbook value starting from May,

thus May and afterwards depreciation should be 61107 USD.

but accountant forget this and depreciate asset in May with amount 54628. the June planned depreciation is still based on Acquisition value, i.e. 61150.

So how to adjust June depreciation, if I create a new depreciation key with multi-method based on NBV and change asset master,

will this solve problem?

how to adjust May posting since it is already posted? thanks