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Pie Chart DI

Master Pie Charts. Learn Degree to Percentage conversion, Double Pie logic, and Missing Data analysis.

Model 1: Degree to Percentage Conversion

      <ul class='list-disc pl-6'>
        <li><strong>The Core Rule:</strong> A full circle is 360┬░ and also 100%.</li>
        <li><strong>Conversion Logic:</strong> <br>
          100% = 360┬░ <br>
          10% = 36┬░ <br>
          1% = 3.6┬░
        </li>
        <li><strong>Formula:</strong> <br>
          Value in % = (Value in Degrees / 360) ├Ч 100 <br>
          Value in Degrees = (Value in % / 100) ├Ч 360
        </li>
      </ul>

Example:

Q: Convert 72┬░ into percentage.
Solution: (72 / 360) ├Ч 100 = (1/5) ├Ч 100 = 20%.

Model 2: The Double Pie Chart

      <ul class='list-disc pl-6'>
        <li><strong>Scenario:</strong> Two pie charts are given. One for Total Population, another for Female Population.</li>
        <li><strong>The Logic:</strong> You need to find Male Population.</li>
        <li><strong>Strategy:</strong> <br>
          Males = Total(Sector) - Females(Sector). <br>
          Calculate real values first, then subtract. Do not subtract percentages directly unless Base values are same (rare).
        </li>
      </ul>

Example:

Q: Total=1000 (A=20%), Females=400 (A=30%). Find Males in A.
Solution: Total A = 20% of 1000 = 200. Female A = 30% of 400 = 120. Male A = 200 - 120 = 80.

Model 3: The 'Missing Slice' Trap

      <ul class='list-disc pl-6'>
        <li><strong>Scenario:</strong> One sector in the pie chart is blank or labeled 'Others'.</li>
        <li><strong>The Logic:</strong> The sum of all sectors must be 100% (or 360┬░).</li>
        <li><strong>Hack:</strong> <br>
          Missing % = 100% - (Sum of known %). <br>
          Missing Degee = 360┬░ - (Sum of known ┬░).
        </li>
      </ul>

Example:

Q: Pie: A=40%, B=35%, C=?. Find C.
Solution: C = 100% - (40+35)% = 100% - 75% = 25%.