Step 1: Estimate the U.S. K–12 Population

Start with the total U.S. population: ~330 million

Assume roughly 20% of the population is school-aged (K–12)
→ 330M × 20% = ~66 million K–12 students

Step 2: Estimate the High School Population

High school covers grades 9–12 (4 out of 13 total grades in K–12)
→ 4 ÷ 13 ≈ 30% of all K–12 students are in high school

66M × 30% = ~20 million high school students

Step 3: Focus on Juniors and Seniors

We only care about 11th and 12th graders (2 of the 4 high school grades)
→ 2 ÷ 4 = 50% of high schoolers

20M × 50% = ~10 million juniors and seniors

Step 4: Focus on Public School Students

Roughly 90% of students attend public schools
10M × 90% = ~9 million public high school juniors and seniors

Step 5: Estimate % Who Prepare for the SAT

Assume 30% of public school juniors and seniors actively prep for the SAT (many opt out, take the ACT, or don’t apply to 4-year colleges)

9M × 30% = ~2.7 million students

Step 6: Estimate Price per Student

Assume the edtech company charges $50 per student per year

Step 7: Calculate Total Revenue

2.7M × $50 = ~$135 million per year

Final Answer

Estimated annual revenue opportunity: ~$135 million

As a further consideration, because these are public schools the company would likely have to develop a strategy for monetizing this product. Charging students is likely not viable at public schooling, so a partnership directly with the schools or government at a state level may be more feasible.