it should be recalled that over three months earlier , appellant celestino juan , in his letter dated january 2 , 1963 to the provincial appraisal committee , evaluated his property at approximately p329,374.00 , stating that he spent p15,000.00 for survey p5,000.00 for registration and p20,000.00 for bulldozing and levelling ; that 60 hectares are first class which should be worth p3,000.00 per hectare ; and that the remaining portion of 278.748 hectares should command at least p500.00 per hectare ( pp .