-91.23% is the change from 559 to 49
Calculation steps:
[( 49 - 559 ) ÷ 559] x 100 = -91.23%
Formula
Percentage change = [(49 - 559) / 559] x 100
Subtract the new number by the original number
49 - 559 = -510
-510 ÷ 559 = -0.9123434704830053
-0.9123434704830053 x 100 = -91.23%