public OverallVolume withReadRatePercent(Double readRatePercent) {
        setReadRatePercent(readRatePercent);
        return this;
    }
<p>
The percentage of emails that were sent from the domain that were read by their recipients.
</p>

@param readRatePercent
       The percentage of emails that were sent from the domain that were read by their recipients.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-pinpointemail/src/main/java/com/amazonaws/services/pinpointemail/model/OverallVolume.java