-89.54% is the change from 545 to 57
Calculation steps:
[( 57 - 545 ) ÷ 545] x 100 = -89.54%
Formula
Percentage change = [(57 - 545) / 545] x 100
Subtract the new number by the original number
57 - 545 = -488
-488 ÷ 545 = -0.8954128440366973
-0.8954128440366973 x 100 = -89.54%