The Rock Underground vs Mathnasium
Franchise Comparison 2026
Both The Rock Underground and Mathnasium are education franchises. The Rock Underground requires an investment of $71K – $188K while Mathnasium requires $113K – $150K. Mathnasium discloses average revenue of $345K; The Rock Underground does not report Item 19 data. Mathnasium has SBA lending data on file with a 1.8% charge-off rate. FranchiseVerdict rates The Rock Underground B (Above Average) and Mathnasium A (Top Quintile).
| Metric | The Rock Underground | Mathnasium |
|---|---|---|
| Verdict Grade | BAbove AverageAbove Average | ATop QuintileTop Quintile |
| Investment Range | $71K – $188K | $113K – $150K |
| Franchise Fee | $25K | $49K |
| Royalty Rate | 6.0% | 10.0% |
| Average Revenue (Item 19) | N/A | $345K |
| SBA Charge-Off Rate | Limited data | 1.8% (109 loans) |
| Total Units | 6 | 972 |
| Unit Growth (YoY) | N/A | N/A |
| Year Began Franchising | 2013 | 2024 |
| FDD Year | 2025 | 2024 |
Investment Range
$71K – $188K
$113K – $150K
Franchise Fee
$25K
$49K
Royalty Rate
6.0%
10.0%
Average Revenue (Item 19)
N/A
$345K
SBA Charge-Off Rate
Limited data
1.8% (109 loans)
Total Units
6
972
Unit Growth (YoY)
N/A
N/A
Year Began Franchising
2013
2024
FDD Year
2025
2024