-54.43% is the change from 564 to 257
Calculation steps:
[( 257 - 564 ) ÷ 564] x 100 = -54.43%
Formula
Percentage change = [(257 - 564) / 564] x 100
Subtract the new number by the original number
257 - 564 = -307
-307 ÷ 564 = -0.5443262411347518
-0.5443262411347518 x 100 = -54.43%