That's an increase of 14,000 people from the year 1995. The year 2000 would be 5 years later. We compare this increase of 14,000 to the original population, 20,000, and get:
14,000
------------- * 100% = 70%
20,000
japones ^^
look you have to multiply
8 cm x 6cm
20cm x 6 cm
and the answer that comes out of the multiplication is the correct one
2,700 feet are needed