Question: What is the function percentage when the estimated function percentage is 20?
SQL: SELECT "Function %" FROM "2-17475470-1" WHERE "Estimated function %" = 20.0;

Question: What is the measurement where the estimated function % is less than 20?
SQL: SELECT "Measurement" FROM "2-17475470-1" WHERE "Estimated function %" < 20.0;

Question: What is the estimated function % when the measurement is 8/8?
SQL: SELECT "Estimated function %" FROM "2-17475470-1" WHERE "Measurement" = '8/8';