The formula to use when you need to estimate monthly vaccine needs is(Target population × Coverage rate × Wastage factor) ÷ Doses per vialAssign these standard values to since they were not provided in the problem.Coverage rate: 100% or 1.0Wastage factor: 1.25 (standard for estimating loss)Assume 1 dose per person, and 1 dose per vial (always round off the number of doses so we get a whole number)Municipality of San Juan – Population: 300,565Tetanus Toxoid300,565 × 1 × 1.25 = 375,706.25 Monthly Requirement = 375,706 dosesPentavalent (DPT)300,565 × 1 × 1.25 = 375,706.25Monthly Requirement = 375,706 dosesOPV300,565 × 1 × 1.25 = 375,706.25Monthly Requirement = 375,706 dosesBCG300,565 × 1 × 1.25 = 375,706.25Monthly Requirement = 375,706 dosesMeasles Vaccine300,565 × 1 × 1.25 = 375,706.25Monthly Requirement = 375,706 dosesBrgy. Maoacat – Population: 8,075Tetanus Toxoid8,075 × 1 × 1.25 = 10,093.75Monthly Requirement = 10,094 dosesPentavalent (DPT)8,075 × 1 × 1.25 = 10,093.75Monthly Requirement = 10,094 dosesOPV8,075 × 1 × 1.25 = 10,093.75Monthly Requirement = 10,094 dosesBCG8,075 × 1 × 1.25 = 10,093.75Monthly Requirement = 10,094 dosesMeasles Vaccine8,075 × 1 × 1.25 = 10,093.75Monthly Requirement = 10,094 doses