$( "#amount" ).val( $( "#slider-range-max" ).slider( "value" ) ); и после $( "#amount2" ).val( $( "#slider-range-max2" ).slider( "value" ) ); добавить var result = $( "#slider-range-max" ).slider( "value" ) * $( "#slider-range-max2" ).slider( "value" );
$( "#how-much" ).html(result);
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