-4.18% is the change from 287 to 275
Calculation steps:
[( 275 - 287 ) ÷ 287] x 100 = -4.18%
Formula
Percentage change = [(275 - 287) / 287] x 100
Subtract the new number by the original number
275 - 287 = -12
-12 ÷ 287 = -0.041811846689895474
-0.041811846689895474 x 100 = -4.18%