Question 714434
10%={{{10/100=0.1}}}
 
{{{x}}} increased by 10% would be
{{{x+0.1x=1.1x}}}
 
{{{y}}} decreased by 10% would be
{{{y-0.1y=0.9y}}}
 
The new ratio after those changes would be {{{11/9=1&2/9}}} of the old ratio:
{{{1.1x/0.9y=(11/9)(x/y)}}}