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The line graph below shows the number of parcels delivered, in millions, by a logistics company in each year from 2018 through 2023. Select from each drop-down menu to complete the statement so that it is most accurate according to the data shown.
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Correct answer
1: 2018 to 2019 · 2: 100%
The blank asks for the largest percentage growth from one year to the next, which is the percent increase relative to the starting year, not the largest absolute jump in parcels. So for each interval, divide the increase by the value it started from.
From 2018 to 2019 parcels rose from 10 million to 20 million, an increase of 10 on a base of 10, which is 100%. From 2019 to 2020 the rise was 15 on a base of 20, about 75%. From 2020 to 2021 it was 20 on a base of 35, about 57%. From 2021 to 2022 it was 25 on a base of 55, about 45%. From 2022 to 2023 it was 30 on a base of 80, about 37%. The largest percentage growth is the first interval, 2018 to 2019, at 100%.
The trap is the steepest segment. The absolute jumps grow every year, from 10 up to 30 million, so the last segment, 2022 to 2023, is the most eye-catching climb on the chart. But because the starting value also grows, that 30-million jump sits on a base of 80 and works out to only about 37%, the smallest percentage of any interval. A big jump on a big base can be a small percentage. Divide each increase by where it started, and the fastest-growing year in percentage terms is the very first one, 2018 to 2019 at 100%.
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