Mean of Array After Removing Some Elements LeetCode solution in Java

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class Solution {
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  public double trimMean(int[] arr) {
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    Arrays.sort(arr);
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    int length = arr.length;
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    int toRemove = length * 5 / 100;
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    int total = 0;
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    for (int number : arr) {
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      total += number;
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    }
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    for (int i = 0; i < toRemove; i++) total -= arr[i];
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    for (int i = length - 1; i >= length - toRemove; i--) total -= arr[i];
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    length -= (2 * toRemove);
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    return (double) ((double) total / (double) length);
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  }
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}