The average monthly disposable income of undergraduate students at a UK university increased from £400 in 2022 to £432 in 2024. For this group of students, the income elasticity of demand (YED) for 'Saver Brand Instant Coffee' is estimated to be -0.75.
Calculate the percentage change in the quantity demanded for Saver Brand Instant Coffee, ceteris paribus.
−0.06%-0.06\%−0.06%
−6.0%-6.0\%−6.0%
+6.0%+6.0\%+6.0%
−10.7%-10.7\%−10.7%