Size of a quantized DNN

Hello,

I am using the deep network quantizer to quantize a deep CNN. I followed instructions given at https://www.mathworks.com/help/deeplearning/ref/deepnetworkquantizer-app.html . I used the Export button and selected Export Quantizer to export my quantized network. But when I compare the size of both networks (the original one before quantization and the quantized one stored in the dlquantizer object), I see they both have the same number of bytes in the workspace.

Is my way for checking the size of network correct and resonable?

The app shows 73% size reduction which I can not find when comparing the networks!

Any help os appreciated.