Answer :
increase is 3.1-1.7=1.4 million
make proportion
1.7million - 100%
1.4 million - x%
x=1.4*100%/1.7=82.36%
Answer: increase is about 82.36%
make proportion
1.7million - 100%
1.4 million - x%
x=1.4*100%/1.7=82.36%
Answer: increase is about 82.36%