You will be given a definition of a task first, then some input of the task.
This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

Passage: The Spanish engaged in a strategy of concentrating native populations in newly founded colonial towns, or reducciones . Native resistance to the new nucleated settlements took the form of the flight of the indigenous inhabitants into inaccessible regions such as the forest or joining neighbouring Maya groups that had not yet submitted to the Spanish. Those that remained behind in the reducciones often fell victim to contagious diseases. An example of the effect on populations of this strategy is the province of Acalan, which occupied an area spanning southern Campeche and eastern Tabasco. When Hernan Cortes passed through Acalan in 1525 he estimated the population size as at least 10,000. In 1553 the population was recorded at around 4,000. In 1557 the population was forcibly moved to Tixchel on the Gulf coast, so as to be more easily accessible to the Spanish authorities. In 1561 the Spanish recorded only 250 tribute-paying inhabitants of Tixchel, which probably had a total population of about 1,100. This indicates a 90% drop in population over a 36-year span. Some of the inhabitants had fled Tixchel for the forest, while others had succumbed to disease, malnutrition and inadequate housing in the Spanish reduccion. Coastal reducciones, while convenient for Spanish administration, were vulnerable to pirate attacks; in the case of Tixchel, pirate attacks and contagious European diseases led to the eradication of the reduccion town and the extinction of the Chontal Maya of Campeche. Among the Maya, ambush was a favoured tactic.
Output:
How many more people lived in Acalan in 1525 compared to 1553?