Your personal budget obviously depends on your spending habits and what is included in your trip cost. If accommodation is included, but meals are not, we would suggest that you bring around 30 USD per day per person for meals. Having a hot shower or charging your device sometimes costs extra. There are also sometimes small crafts/souvenirs to buy along the trekking route which you may want to bring extra money for. Also, consider whether you would be staying in Kathmandu or Pokhara before or after your trek.