PokerTracker

How can I build that stat?
Thanks in advance.

Create the following columns:

cnt_p_squeeze_fold: sum(if[holdem_hand_player_statistics.flg_p_squeeze and holdem_hand_player_statistics.enum_p_4bet_action='F', 1, 0])

and
cnt_p_squeeze_face_4b: sum(if[holdem_hand_player_statistics.flg_p_squeeze and holdem_hand_player_statistics.flg_p_4bet_def_opp, 1, 0])

Put the former over the latter and multiply by 100. For more on creating custom statistics and reports please see the Tutorial: Using Custom Stats and Reports.