-1.07% is the change from 281 to 278
Calculation steps:
[( 278 - 281 ) ÷ 281] x 100 = -1.07%
Formula
Percentage change = [(278 - 281) / 281] x 100
Subtract the new number by the original number
278 - 281 = -3
-3 ÷ 281 = -0.010676156583629894
-0.010676156583629894 x 100 = -1.07%