Neep help with calculations for this pippete lab

weights of bottles without water

1.) 15.3148g

2.) 14.8768g

3.) 15.1088G

Temperatures

1.) 22.4 celcius

2.) 22.4

3.) 22.4

weights after water

1.) 25.2107g

2.)24.7895g

3.) 25.0010g

Calculate the relative average deviation (%RAD) for the volume delivered by the pipet (see example on pg. IV.5IV.6 in the lab manual)