public Builder setProgressPercentage(double value) {

      progressPercentage_ = value;
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }
<pre>
The progress of the most recent processing update in percentage, ie. 70.0%.
</pre>

<code>double progress_percentage = 3;</code>

@param value The progressPercentage to set.
@return This builder for chaining.
java-texttospeech/proto-google-cloud-texttospeech-v1beta1/src/main/java/com/google/cloud/texttospeech/v1beta1/SynthesizeLongAudioMetadata.java