Kay would like to estimate the percentage change in foreign currency value against the dollar value from the historical data. Assume that the value of the South Africa rand$($ZAR$)$ was changed from$$ZAR $8\mathrm{.}55$ equals $ $1\mathrm{.}00$ in February$4,2003$ to ZAR $6\mathrm{.}95$ equals $ $1\mathrm{.}00$ in February$4,2004.$ What was the percentage value change in South Africa rand against dollar over the$$ year?