-6% is the change from 300 to 282
Calculation steps:
[( 282 - 300 ) ÷ 300] x 100 = -6%
Formula
Percentage change = [(282 - 300) / 300] x 100
Subtract the new number by the original number
282 - 300 = -18
-18 ÷ 300 = -0.06
-0.06 x 100 = -6%
Example