Not out-of-the-box, but you can create a coupon that applies the 10% discount and adds a free product and include a snippet like this one (untested) that will set the quantity of matching products to 0 if the cart amount < 200 :
(Replace COUPON_CODE with the actual coupon code)
add_filter( 'wjecf_free_product_amount_for_coupon', function( $coupon_qty, $coupon ) {
if ( strcasecmp( $coupon->get_code(), 'COUPON_CODE' ) === 0 ) {
$subtotal = WJECF_API()->get_subtotal_of_matching_products( $coupon );
if ( $subtotal < 200 ) {
$coupon_qty = 0;
}
}
return $coupon_qty;
}, 10, 2);