An employee was promised a yearly rise of his salary of 4% in 2008 and 2009.But in 2009 this rise was cut by 30%.Find the percentage P of the total rise for these two years.题啥意思哦~

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An employee was promised a yearly rise of his salary of 4% in 2008 and 2009.But in 2009 this rise was cut by 30%.Find the percentage P of the total rise for these two years.题啥意思哦~
An employee was promised a yearly rise of his salary of 4% in 2008 and 2009.But in 2009 this rise was cut by 30%.Find the percentage P of the total rise for these two years.
题啥意思哦~

An employee was promised a yearly rise of his salary of 4% in 2008 and 2009.But in 2009 this rise was cut by 30%.Find the percentage P of the total rise for these two years.题啥意思哦~
一个职工的薪水在2008和2009年中以每年4%的涨幅增长,但在2009年此增长被缩减了30%.计算两年的总涨幅P.

(1+0.04)(1+0.04*0.7)=1.06912
P=0.06912

工人被诚诺在08年和09年里,薪水会每年增长百分之四。但是在09年这个增长率被削减了百分之三十。问这两年总的增长率