-91.79% is the change from 548 to 45
Calculation steps:
[( 45 - 548 ) ÷ 548] x 100 = -91.79%
Formula
Percentage change = [(45 - 548) / 548] x 100
Subtract the new number by the original number
45 - 548 = -503
-503 ÷ 548 = -0.9178832116788321
-0.9178832116788321 x 100 = -91.79%