-94.53% is the change from 548 to 30
Calculation steps:
[( 30 - 548 ) ÷ 548] x 100 = -94.53%
Formula
Percentage change = [(30 - 548) / 548] x 100
Subtract the new number by the original number
30 - 548 = -518
-518 ÷ 548 = -0.9452554744525548
-0.9452554744525548 x 100 = -94.53%