-94.52% is the change from 547 to 30
Calculation steps:
[( 30 - 547 ) ÷ 547] x 100 = -94.52%
Formula
Percentage change = [(30 - 547) / 547] x 100
Subtract the new number by the original number
30 - 547 = -517
-517 ÷ 547 = -0.9451553930530164
-0.9451553930530164 x 100 = -94.52%