A town of 2,00,000 people grew by 10% in a year. Of the people it gained, 22% later moved away. Those who moved away are what per cent of the town's grown count?

The town gained 10% of 2,00,000 = 20,000 people, taking it to 2,20,000. Of the newcomers, 22% of 20,000 = 4,400 moved away. The base asked for is the grown count: 4400/220000 = 0.02 = 2%. 2.2% divides by the 2,00,000 the town started from, ignoring the growth the question points at. 22% simply repeats the given rate, which is a share of the 20,000 newcomers only. 10% is the town's growth rate.