How to subtract percentages from a number: three effective ways

, . , , . . , . , : ( ) ( ).

, . , , . - . , , . , . , , . , 10 1000. , , . , .

. , . : , - . - 1000 X. , , . - 100% 10%.

, 100% - 1000, 10% - X. , 1000 10. 100. : , 100%. : (1000*10)/100. .

100. . , , 1000 100. 900. . , . . . , .

Windows

: , . . , Windows. : . Windows .

. , , . . "". " ", "" "".

, . . 1000. 10%. - (1000), (-), (%). , 1000-100. , 10% 1000.

Enter (=). : 900. , , . , . , , .

Excel

Excel. , . , Excel. , . , . 25%. (=). , "-" ( , - "*25%). , .

, , . Enter . 25% , , , . , "" .

: , - (x*y)/100. .