-78.06% is the change from 556 to 122
Calculation steps:
[( 122 - 556 ) ÷ 556] x 100 = -78.06%
Formula
Percentage change = [(122 - 556) / 556] x 100
Subtract the new number by the original number
122 - 556 = -434
-434 ÷ 556 = -0.7805755395683454
-0.7805755395683454 x 100 = -78.06%