-10.22% is the change from 313 to 281
Calculation steps:
[( 281 - 313 ) ÷ 313] x 100 = -10.22%
Formula
Percentage change = [(281 - 313) / 313] x 100
Subtract the new number by the original number
281 - 313 = -32
-32 ÷ 313 = -0.10223642172523961
-0.10223642172523961 x 100 = -10.22%