Find the next number in the sequence

Find the next number in the sequence Solution - 18 April

Find the next number in the sequence below ?

298 209 129 58  ?

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Solution
-4

298 less 209 is 89
209 less 129 is 80
129 less 58 is 71
58 less -4 is 62
The result of each subsequent equation is 9 less than the previous one.