Pay on the cheque versus pay after inflation
First note the dollar amount paid at the time. Then compare it with consumer prices to see whether workers could generally buy more or less.
If earnings rise more slowly than the relevant CPI, workers can generally buy less even while the number on the paycheque increases.
Match the earnings period to the CPI period
Weekly earnings should be compared with CPI for the same month or year. Mixing a monthly pay observation with an annual-average CPI can introduce avoidable drift.
Keep average weekly earnings, hourly wages and take-home pay as separate concepts.
- Use the same month or annual convention
- Keep current dollars and constant dollars labelled
- Do not mix average, median and individual pay
National averages, provinces and industries
Statistics Canada earnings differ by industry and geography. Provincial prices also differ, so one national real-wage result cannot describe every worker.
A full comparison identifies the worker group, province, hours, earnings concept and CPI geography.