Example:
I deploy a contract(gen a multi sign address,3owners) or tranfer 0 amount to a KT1 address (for multisign address send money to a tz1 address)
I can estimate fee by: https://github.com/TezTech/eztz/blob/master/PROTO_003_FEES.md
But only know fee is not enough. I need to know paid_storage_size_diff
like following, at last: