Total caloric restriction over 6 moths:
10%*350 pounds = 35 pounds.
35 pounds * 3,500 calories per pound = 122,500 total calories.
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If weigh loss period is 27 weeks, divide by total number of weeks:
122,500 calories/ 27 weeks = 4537 calories per week
and by number of days (27 weeks= 189 days)
122,500/189 = 648 calories per day