-80.29% is the change from 279 to 55
Calculation steps:
[( 55 - 279 ) ÷ 279] x 100 = -80.29%
Formula
Percentage change = [(55 - 279) / 279] x 100
Subtract the new number by the original number
55 - 279 = -224
-224 ÷ 279 = -0.8028673835125448
-0.8028673835125448 x 100 = -80.29%