-94.59% is the change from 555 to 30
Calculation steps:
[( 30 - 555 ) ÷ 555] x 100 = -94.59%
Formula
Percentage change = [(30 - 555) / 555] x 100
Subtract the new number by the original number
30 - 555 = -525
-525 ÷ 555 = -0.9459459459459459
-0.9459459459459459 x 100 = -94.59%