// Register Shortcode
if( ! function_exists( 'shortcode_boc_circle_counter' ) ) {
	function shortcode_boc_circle_counter( $atts, $content = null ) {
	
		$atts = vc_map_get_attributes('boc_circle_counter', $atts );
		extract( $atts );

		$id = rand(0,10000);

		if(!$custom_color) {
			$color = boc_get_main_color();
		}
		if($centered) {
			$css_classes .= ' center';
		}
		if($angle) {
			$css_classes .= ' half_circle';
		}
		if($size == 120) {
			$css_classes .= ' small_counter';
		} elseif($size == 80) {
			$css_classes .= ' large_counter';
		}
        
        //EC Added the following modification for decimal numbers (removed (int))
        //<canvas width='.esc_attr($size).' height='.esc_attr($size).'  data-end-nu="'.(int) $number.'"></canvas>
        //<div class="circ_counter_text_holder"><span class="circ_counter_text"  id="circ_counter_text'.$id.'"></span><span class="counter_percent_sign heading_font">%</span></div>

        
		$str = '<div class="circ_numbers_holder '.esc_attr($css_classes).' '.($white_text ? "white_text" : "").'">
					<div class="circ_counter" data-color="'.esc_attr($color).'" data-angle="'.esc_attr($angle).'" data-size="'.esc_attr($size).'" data-white_text="'.($white_text ? "1" : "0").'">
						<canvas width='.esc_attr($size).' height='.esc_attr($size).'  data-end-nu="'.$number.'"></canvas>
                        <div class="circ_counter_text_holder"><span class="circ_counter_text"  id="circ_counter_text'.$id.'"></span><span class="counter_percent_sign heading_font">%</span></div>

						<div class="circ_counter_desc">'.wp_kses_post($title).'</div>
					</div>
				</div>';

		return $str;
	}
	
	add_shortcode('boc_circle_counter', 'shortcode_boc_circle_counter');

Here’s the link to that thread:

http://blueowlcreative.com/support_wp/forums/topic/circle-counter-2/

See how you have this line in your new gauge_dec method:

this.el.innerHTML = gauge.displayedValue.toPrecision(2);

Change the precision 2 to 3.

Have in mind this will change all calculations to 3 digits.