-90.43% is the change from 564 to 54
Calculation steps:
[( 54 - 564 ) ÷ 564] x 100 = -90.43%
Formula
Percentage change = [(54 - 564) / 564] x 100
Subtract the new number by the original number
54 - 564 = -510
-510 ÷ 564 = -0.9042553191489362
-0.9042553191489362 x 100 = -90.43%