How to Build a Ap World Calculator

function predictAPWorldScore(mcCorrect, saqScores, dbqScore, leqScore) {
  const mc = Math.min(mcCorrect * 1.0909, 60);
  const saq = saqScores.reduce((s, v) => s + Math.min(v, 3), 0) * 3.333;
  const dbq = Math.min(dbqScore, 7) * 5.357;
  const leq = Math.min(leqScore, 6) * 3.75;
  const composite = Math.round(mc + saq + dbq + leq);

  const cuts = { 5: 100, 4: 80, 3: 60, 2: 40 };
  let apScore = 1;
  for (const [score, min] of Object.entries(cuts).sort((a, b) => b[1] - a[1])) {
    if (composite >= min) { apScore = parseInt(score); break; }
  }

  return {
    composite, maxComposite: 150, apScore,
    breakdown: {
      mc: Math.round(mc * 10) / 10, saq: Math.round(saq * 10) / 10,
      dbq: Math.round(dbq * 10) / 10, leq: Math.round(leq * 10) / 10
    }
  };
  }