-78.02% is the change from 555 to 122
Calculation steps:
[( 122 - 555 ) ÷ 555] x 100 = -78.02%
Formula
Percentage change = [(122 - 555) / 555] x 100
Subtract the new number by the original number
122 - 555 = -433
-433 ÷ 555 = -0.7801801801801802
-0.7801801801801802 x 100 = -78.02%