-55.5% is the change from 564 to 251
Calculation steps:
[( 251 - 564 ) ÷ 564] x 100 = -55.5%
Formula
Percentage change = [(251 - 564) / 564] x 100
Subtract the new number by the original number
251 - 564 = -313
-313 ÷ 564 = -0.5549645390070922
-0.5549645390070922 x 100 = -55.5%