-4.97% is the change from 302 to 287
Calculation steps:
[( 287 - 302 ) ÷ 302] x 100 = -4.97%
Formula
Percentage change = [(287 - 302) / 302] x 100
Subtract the new number by the original number
287 - 302 = -15
-15 ÷ 302 = -0.04966887417218543
-0.04966887417218543 x 100 = -4.97%