Study the graph and answer the questions.
What was the approximate percent increase in sales of Cool-sip in 1990 over its sales in 1989 ?
Sales of cool sip in 1989 = 6
Sales of cool sip in 1990 = 19
=> % increase = $$\frac{19-6}{6} * 100 = 216.67\%$$
= ~217%
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