Bondage means working for one's own account. The same example. Just like a soldier is fighting for the country under the command of the commander in chief. The more he's killing, he's getting promotion, he's getting medals. But the same man, when he comes back at home, if he kills one man, he's hanged. Why? Because that killing and this killing is not the same thing. So one who cannot engage himself cent percent in Kṛṣṇa consciousness, let him remain in his own position and try to sacrifice for Viṣṇu or Kṛṣṇa as far as possible.
The prescription is for the gṛhasthas, for the householder, as exemplified by Śrīla Rūpa Gosvāmī that his income was divided into four parts. Fifty percent for Kṛṣṇa, twenty-five percent for the family and twenty-five percent for his personal reserve fund. That he showed us example how a gṛhastha should live. Not that out of hundred dollars, ninety-nine percent for my wife, and one percent for Kṛṣṇa. No. Not like that. One should sacrifice at least fifty percent. If he cannot sacrifice this... Brahmacārīs, sannyāsīs, they have sacrificed their everything, cent percent. The gṛhastha, they cannot do that. Because they have got wife, children. Therefore fifty percent.
So these are the prescribed rules and regulations for executing Kṛṣṇa consciousness. Anyway, if one cannot sacrifice cent percent, let him sacrifice at least one percent, two percent. The more he does, that is, more he becomes free from bondage. And the more he uses his earning for sense gratification, the more he becomes bound up by the laws of material nature.