ASAP HELP NEEDED ranges for a tax bracket

hey every1 tried looking around for this but couldnt find it pls help if you got any idea's


if c6 is less than 200 then 0%, if c6 is between 200 and 600 then 25%, if c6 is between 600 and 1000 then 40%, if c6 is above 1000 then 50%

im stuck on

IF(c6<200, 0, OR(c6>200, c6<600) then 25%) ---and so on for other ranges ah if then elseldsahfashf;

AHHHHHHHHHHHHHH HELPPPPPPPPPPPPPPPPPP

=if(c6<200,0%,if(or(c6>200,c6<600),25%,if(or(c6>600,c6<1000),40%,if(or(c6>1000),50%))))

well thanx to all of yous i finally got it cheers!

for anyone who perhaps DIDNT know it:=
=IF(C6<200,0%,IF((AND(C6>200,C6<600)),25%,IF((AND(C6>600,C6<1000)),40%,IF(C6>1000,50%,0))))