Switch statement not working

Perc_display =    SWITCH (       TRUE (),       '_1'[Value]= 0.0 , "0%",       '_1'[Value]= 0.05, "5%",       '_1'[Value]= 0.10, "10%",       '_1'[Value]= 0.15, "15%",       '_1'[Value]= 0.2...