public void setTargetCapacity(Integer targetCapacity) {
        this.targetCapacity = targetCapacity;
    }
<p>
The target capacity utilization as a percentage for the capacity provider. The specified value must be greater
than <code>0</code> and less than or equal to <code>100</code>. For example, if you want the capacity provider to
maintain 10% spare capacity, then that means the utilization is 90%, so use a <code>targetCapacity</code> of
<code>90</code>. The default value of <code>100</code> percent results in the Amazon EC2 instances in your Auto
Scaling group being completely used.
</p>

@param targetCapacity
       The target capacity utilization as a percentage for the capacity provider. The specified value must be
       greater than <code>0</code> and less than or equal to <code>100</code>. For example, if you want the
       capacity provider to maintain 10% spare capacity, then that means the utilization is 90%, so use a
       <code>targetCapacity</code> of <code>90</code>. The default value of <code>100</code> percent results in
       the Amazon EC2 instances in your Auto Scaling group being completely used.
aws-java-sdk-ecs/src/main/java/com/amazonaws/services/ecs/model/ManagedScaling.java