-5.96% is the change from 285 to 268
Calculation steps:
[( 268 - 285 ) ÷ 285] x 100 = -5.96%
Formula
Percentage change = [(268 - 285) / 285] x 100
Subtract the new number by the original number
268 - 285 = -17
-17 ÷ 285 = -0.05964912280701754
-0.05964912280701754 x 100 = -5.96%