Calculating and comparing real wage changes

A recurring calculation-plus-comparison task: use nominal wage growth and the inflation rate to find whether a group's REAL wage rose or fell, then compare it to another group.

The method

REAL WAGE CHANGE ≈ nominal wage growth (%) − inflation rate (%) — a positive result means real purchasing power increased; a negative result means it fell, even if the nominal (dollar) wage rose.
To compare TWO groups, calculate each group's real wage change SEPARATELY using their own nominal wage growth figures against the SAME inflation rate, then compare the two results directly.
A group whose nominal wage grew SLOWER than inflation is WORSE OFF in real terms, even though their pay packet got bigger in dollar terms — always state this apparent contradiction explicitly.

Worked example Comparing real wage changes for minimum-wage vs other workers Minimum wage rose 8% while inflation was 7.2%. Other workers' wages rose 5% on average. Explain the change in real wages for minimum-wage workers compared to other workers. MINIMUM-WAGE WORKERS: real wage change ≈ 8% − 7.2% = +0.8% — a small but genuine INCREASE in real purchasing power. OTHER WORKERS: real wage change ≈ 5% − 7.2% = −2.2% — a real-terms DECREASE in purchasing power, despite their nominal wage still rising. COMPARISON: minimum-wage workers were BETTER OFF in real terms than other workers over this period, even though their nominal pay rise (8%) was similar in scale to typical pay rises — the difference came entirely from how each rate compared to the 7.2% inflation rate. ✓ The strongest answers show BOTH calculations explicitly, then state the comparison in REAL terms — not just comparing the two nominal percentage figures, which would give the wrong conclusion about who was actually better off. ✕

Comparing nominal wage growth rates instead of real ones

Concluding "minimum-wage workers did better because 8% is bigger than 5%" compares NOMINAL figures only. The comparison that actually matters is REAL wage change — each group's nominal growth minus the SAME inflation rate — since that is what determines actual purchasing power.

Group	Nominal growth	Inflation	Real wage change
Minimum-wage workers	8%	7.2%	+0.8%
Other workers	5%	7.2%	−2.2%

Practice for this standard covers the whole topic — flashcards and quiz.