10.
 John Wong makes $63,800 per year maintaining a self-storage business. 
 He was notified of a 3.3% raise in a year in which the CPI index increased
 by 4.4%. 
 Find the gain or loss in his purchasing power.
 loss of $701.80
 gain of $701.80
 loss of $2105.40
 gain of $2105.40