Standard schedule of rates of the last year

Standard schedule of rates of the average of the last 10 years

Standard schedule of rates of the average of last 5 years

Standard schedule of rates of the current year

When an estimate is exceeded to actual estimate

When an estimate is fell short of the actual estimate

When an estimate perfectly matches the actual estimate

No work started as per estimate

No work started as per estimate

An estimate perfectly matches with actual

An estimate is fell short of the actual estimate

An estimate is exceeded the actual estimate

Estimation

Drawing

Specification

Plan

Shape of material

Brand of the materials

Quantity, availability and transportation of materials

Location of material