document.write( "Question 888135: A primary school had an enrollment of 850 pupils in January 1970. In January 1980 the enrollment was 1,120; What was the percentage increase for the enrollment? \n" ); document.write( "
Algebra.Com's Answer #537095 by skartikey(21)\"\" \"About 
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%increase=(increase in enrollment/original enrollment)*100%
\n" ); document.write( "=((1,120-850)/850)*100%
\n" ); document.write( "=31.76%
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