How to allow user dynamic change the currency exchange rate ?

[#1]

Hi All

i have below script , when user select the country , it will set the exchange rate , for example

indonesia the rate 8300.

RATE:

LOAD * INLINE [

Currency_P, RATE_P

SG, 1

MY, 2

INDO, 8300

THAI, 25

];

Now user wanted the rate change be dynamic and adjust by themself , so i create a slide for user to change.

Rate:

LOAD * INLINE [

iDiff_Values

    8000

    8200

    8400

    8600

    ];

My issue is how can i link 2 of them together ?

Paul