Manasara 30.93

30.93

tithi randhroṇa vṛddhiḥ syāttriṃśatā kṣayo bhavet
sidhyādi dvādaśāyaḥ syācchikharādivyayaṃ daśa

For the lunar day, there is an increase by nine, and the deduction is by thirty; / Beginning with *siddhi*, there are twelve types of income; beginning with *śikhara*, there are ten types of expenditure;