public BandWidth adjust(BandWidth bandWidth) {
		float rate = ((float) Math.abs(time - bandWidth.getTime())) / 1000;
		receivedPerSec = ((long) ((received - bandWidth.getReceived()) / rate));
		sentPerSec = ((long) ((sent - bandWidth.getSent()) / rate));
		return this;
	}
Calculate the bandWith by subtracting prev bandwidth.

@param bandWidth	bandWidth adjusted against.
@return adjusted bandWidth.
ngrinder-core/src/main/java/org/ngrinder/monitor/share/domain/BandWidth.java