-91.13% is the change from 564 to 50
Calculation steps:
[( 50 - 564 ) ÷ 564] x 100 = -91.13%
Formula
Percentage change = [(50 - 564) / 564] x 100
Subtract the new number by the original number
50 - 564 = -514
-514 ÷ 564 = -0.9113475177304965
-0.9113475177304965 x 100 = -91.13%