-63.44% is the change from 279 to 102
Calculation steps:
[( 102 - 279 ) ÷ 279] x 100 = -63.44%
Formula
Percentage change = [(102 - 279) / 279] x 100
Subtract the new number by the original number
102 - 279 = -177
-177 ÷ 279 = -0.6344086021505376
-0.6344086021505376 x 100 = -63.44%