Onchange client script for calculation

[SAM321]

Hi all , so this is my script for calculating values in field on changing value in GST field....

How can i modify this script...  Initially CGST  and SGST values '320'wil l be auto calculated at that time IGST should show only '0'...when i manually change CGST and SGST to '0' only at that time IGST should show '640'...

can i get script for it

[lp6]

hi,

you can use this ui policy

hit thumbnail if it works.

[SAM321]

@lp6 still IGST value is showing when cost and gst is filled. actually it should show 0 at first, when i manually change CGST and SGST to 0 ...it should show 1040

[lp6]

Did you uncheck the onload checkbox on ui policy

[SAM321]

@lp6 yes i unchecked...still its not working

I have to make any changes in when to apply section?