-90.47% is the change from 514 to 49
Calculation steps:
[( 49 - 514 ) ÷ 514] x 100 = -90.47%
Formula
Percentage change = [(49 - 514) / 514] x 100
Subtract the new number by the original number
49 - 514 = -465
-465 ÷ 514 = -0.9046692607003891
-0.9046692607003891 x 100 = -90.47%