percentage change

kaf wrote: In 1985, 45% of a document storage facility's 60 customers were banks, and in 1987, 25% of its ......customers were banks. What was the percent increase from 1985 to 1987 in the number of bank customers the facility had?

chetanojha wrote:1985 => 45% of 60 =27
1987 => 25% of 144=37

Total Increase between 1998-1987=36-27=9

%Increase=9/27=1/3=33.33%

kaf wrote:chetanojha thanks a lot for the solution but i think there are a few typo errors so i have corrected it below

1985 => 45% of 60 =27
1987 => 25% of 144=36

Total Increase between 1985-1987=36-27=9

%Increase=9/27=1/3=33.33%