-9.08% is the change from 573 to 521
Calculation steps:
[( 521 - 573 ) ÷ 573] x 100 = -9.08%
Formula
Percentage change = [(521 - 573) / 573] x 100
Subtract the new number by the original number
521 - 573 = -52
-52 ÷ 573 = -0.09075043630017451
-0.09075043630017451 x 100 = -9.08%