-91.31% is the change from 564 to 49
Calculation steps:
[( 49 - 564 ) ÷ 564] x 100 = -91.31%
Formula
Percentage change = [(49 - 564) / 564] x 100
Subtract the new number by the original number
49 - 564 = -515
-515 ÷ 564 = -0.9131205673758865
-0.9131205673758865 x 100 = -91.31%