-13.45% is the change from 290 to 251
Calculation steps:
[( 251 - 290 ) ÷ 290] x 100 = -13.45%
Formula
Percentage change = [(251 - 290) / 290] x 100
Subtract the new number by the original number
251 - 290 = -39
-39 ÷ 290 = -0.13448275862068965
-0.13448275862068965 x 100 = -13.45%