Multiply input range value by another number and display result

please how can i multiply the current input range value by 0.95 and display the result in a span tag when button is clicked?

<input id="aaj" type="range" min="{{amountmin}}" max="{{amountmax}}" step="0.003" value="{{amountmin}}">
<button id="aaw" class="aak" onclick="rig();">Range Slider Button</button>

<span class="result"></span>