The wife is responsible for spending wealth, maintaining the household, religious obligations and preparing food. (Manu 9;11.)
According to Vedic law the wife is responsible for the bank account and running the household economy.
शौचे धर्मेऽन्नपक्त्यां च पारिणाह्यस्य वेक्षणे ॥ ११ ॥
arthasya saṅgrahe caināṃ vyaye caiva niyojayet |
śauce dharme'nnapaktyāṃ ca pāriṇāhyasya vekṣaṇe || 11 ||
The amount was negotiated.