Pricing Calculator

Determine whether to adjust billing based on year-over-year student count variance.

Enter last year and this year student counts, set a variance threshold, and click Calculate to see the suggested additional charge.

Calculator

All fields are required to calculate.
Whole number. If set to 0, calculation will show an error (divide-by-zero prevention).
Variance threshold is automatically based on this year’s enrollment tier.
Default is 48. Reset restores this value.

Results

Not calculated
Enter values and click Calculate
Last year student count
This year student count
Difference in students
Variance percentage
Threshold
Billing rate
Last year billed amount
This year actual amount
Revenue difference
Suggested additional charge

How Variance Thresholds Work

A transparent explanation of why thresholds exist and why they change by school size.

Our pricing is based on the number of students at your school. Because enrollment naturally fluctuates throughout the year, we use a variance threshold to allow for normal changes without requiring constant billing adjustments.

A variance threshold creates a “buffer” where small changes in enrollment do not immediately impact your billing.

However, using a flat percentage for all schools can lead to very different outcomes depending on size. For example, a 10% change at a small school may only represent 1–3 students, while a 10% change at a larger school could represent 20–30 students.

To keep this fair and balanced, we use a tiered variance threshold based on enrollment:

  • Under 50 students 5%
  • 50–99 students 7.5%
  • 100–149 students 7%
  • 150–199 students 6%
  • 200+ students 5%

This means:

  • Smaller schools are given a slightly higher percentage to allow for normal fluctuations without frequent billing changes
  • Larger schools use a lower percentage so that significant increases in enrollment are reflected more accurately

For example:

  • A school with 40 students has a 5% buffer (~2 students)
  • A school with 100 students has a 7% buffer (~7 students)
  • A school with 300 students has a 5% buffer (~15 students)

This approach helps ensure:

  • Billing remains predictable and stable for smaller schools
  • Larger enrollment changes are accounted for fairly
  • Pricing stays aligned with actual usage as schools grow

The goal is to provide flexibility where it matters most, while keeping the system fair across all school sizes.