income elasticity of demandWatch
please show all working
another tip is just to remember that if income increases and demand for a good, it's a normal good so will be positives
% change = change / original value
Use these formulas to help you
I'm glad I looked at this thread as it's basically revision for stuff I learnt last year lol, you planning to study econ at uni out of interest?
Which uni's have you applied to? I'm in y12 but trying to find out which ones have the best business schools