[填空题]
A particular guitar string is supposed to v.s784 eagq5kqyy p+bxibrate srjb5hctvppfn 07qv --1d1z 0at 200 Hz, but it is measured to vibrate at 205 Hz. By w vzps1 rv hq0 d10t5n7--jpcbfhat percent should the tension in the string be changed to correct the frequency? decreased by %