First: work out the difference (increase) between the two numbers you are comparing.
Increase = New Number - Original Number
Then: divide the increase by the original number and multiply the answer by 100.
% increase = Increase ÷ Original Number × 100.
Using this math, you get the percent increase of : 1.79, but rounding to the nearest tenth, you get the answer of:
1.8 Hope this helps :)