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1. 1
   What you see4-year cohort graduation rate

   98.5%

   the four-year cohort graduation rate: the share of a 9th-grade entry cohort that graduated within four years.

   vs. peers

   100th percentile

   vs. citywide

   86th percentile

   unit

   percent

   direction

   higher is better

2. 2
   How it was computedvalue = published 4-year cohort graduation rate (district file, indexed by cohort entry year; state file, indexed by report year)

   1. Read the district's graduation CSV (all cohorts, 4/5/6-year rates, by subgroup) and store by cohort year.
   2. The state's Future Ready file also carries a 4-year rate for every school including charters; it is stored under the same key but indexed by report year.

   Citywide percentile, reconstructed right now

   Among 23 default-included schools with a value for this metric, year, and subgroup, this school has a higher value than 19. Midrank rule: (19 + 0/2) / (23 − 1) = 0.864.Stored: 0.864. ✓ matches

   How percentiles are computed · How peer groups are chosen

   Peer percentile, reconstructed right now

   Peer group: up to 40 of the demographically nearest schools among Elementary-Middle-High / lottery / charter schools; 5 of 13 peers have a value this year. This school is above 5 of them. Midrank: (5 + 0/2) / (6 − 1) = 1.000; stored 1.000. ✓ matches

   The peers and their values (5)

   Peer school	Value
   PHILA PERFORMING ARTS-BROAD ST	98.4%
   NEW FOUNDATIONS CHARTER SCHOOL	92.9%
   PHILADELPHIA ACADEMY	91.2%
   TACONY ACADEMY CHARTER SCHOOL	78.3%
   MARITIME ACADEMY CHARTER	65.7%

   Note: stored percentiles are computed by a batch script after loads; a difference from the live reconstruction means a newer load changed the comparison set and the batch has not been re-run.

   Evidence: metric tree: 4-year cohort graduation rate

3. 3
   The stored cellThe stored cell

   table

   philly_school_year_metrics

   value

   98.5

   denominator

   null (not published)

   suppressed

   false

   citywide_percentile

   0.8636

   comparison_group_percentile

   1.0000

   source_load_id

   8709f04a-70da-4969-8d69-7d01a830daea

   Evidence: data model overview

4. 4
   The load that wrote itWritten on 2026-09-08 by futurereadypa_performance.ts

   source id

   futurereadypa_performance_2021-22

   file URL

   https://futurereadypa.org/home/getdatafile?id=39

   SHA-256 of the file read

   4efe1b1b120f327f19f9541636a4d5f97592b0ac6f28662d0496875c09c09387Copy hash

   bytes

   4,821,070

   year covered

   2021-22

   code commit

   c19ea6ec845c65bcc40eb49644be1c7e67b05f25

   To confirm you have the same file: download it from the URL above, then run shasum -a 256 <downloaded file> Copy command — the output should equal the hash above. If the publisher has since replaced the file, the hashes will differ, which is itself useful to know.

   Evidence: loader script · first-fetch findings for this file · source registry

5. 5
   The publisher's fileFuture Ready PA Index datafile, 2021-22

   Pennsylvania Department of Education (Future Ready PA Index). Same structure as the 2024-25 file.

   format

   XLSX (wide)

   join key

   AUN + Schl → ULCS

   landing page

   https://futurereadypa.org/Home/DataFiles

   • Same as 2024-25.
6. 6
   How it was checkedChecks: 2 passed

   • ✓ passedBase case (district file, 2021-22 cohort): 75 of 75 unsuppressed cells match
   • ✓ passedCompleteness

   Checked at ±0.5: 0 mismatches, 0 cells served but absent from the file, 1 in the file but not served (ALL, n/a, latest year).

   Evidence: Base case (district file, 2021-22 cohort) · Completeness

7. 7
   Assumptions & caveatsAssumptions and caveats

   • The two publishers' rows never collide on (school, year, subgroup) because they use different year conventions; readers must check which convention a given year follows.

   • Two year conventions coexist under one key — a known v1 wart flagged for normalization.

   Algorithms involved: Citywide and peer-group percentiles, Peer groups: 40 nearest neighbors on demographics