Mark Washington, CFA, is an analyst with BIC. One year ago, BIC analysts predicted that the U.S. equity market would experience a slight downturn and suggested delta-hedging the BIC portfolio. U.S. equity markets did indeed fall, but BIC's portfolio performance was disappointing, lagging its peer group by nearly 10%. Washington is reviewing the options strategy to determine why the hedged portfolio did not perform as expected. Washington considers a put option with a delta of -0.65 . If the price of the underlying asset decreases by $6, what is the best estimate of the change in option price? Note: Round your answer to 2 decimal places