-97.63% is the change from 548 to 13
Calculation steps:
[( 13 - 548 ) ÷ 548] x 100 = -97.63%
Formula
Percentage change = [(13 - 548) / 548] x 100
Subtract the new number by the original number
13 - 548 = -535
-535 ÷ 548 = -0.9762773722627737
-0.9762773722627737 x 100 = -97.63%