Question 1089039

let percentage increase be {{{x}}}% or {{{x/100}}}

if the rates were {{{152.24}}} last year, and they increase be {{{x}}}% of it

this year the rate is {{{152.24+(x/100)152.24}}}

and it is equal to {{{182.76}}}

so, we have 

{{{152.24+(x/100)152.24=182.76}}}.......solve for {{{x}}}

 {{{(152.24x/100)=182.76-152.24}}}

{{{1.5224x=30.52}}}

{{{x=30.52/1.5224}}}

{{{x=20.04729374671571}}}...round it

{{{x=20.05}}} => percentage increase is {{{20.05}}}%


check:

the rates were {{{152.24}}} last year
increase is {{{20.05}}}% or {{{0.2005}}}=>increase was {{{0.2005*152.24=30.52412}}}

add {{{152.24}}} and {{{30.52412}}}:{{{152.24+30.52412=182.76}}} which is given this year rate