-9.01% is the change from 566 to 515
Calculation steps:
[( 515 - 566 ) ÷ 566] x 100 = -9.01%
Formula
Percentage change = [(515 - 566) / 566] x 100
Subtract the new number by the original number
515 - 566 = -51
-51 ÷ 566 = -0.09010600706713781
-0.09010600706713781 x 100 = -9.01%