-9.66% is the change from 621 to 561
Calculation steps:
[( 561 - 621 ) ÷ 621] x 100 = -9.66%
Formula
Percentage change = [(561 - 621) / 621] x 100
Subtract the new number by the original number
561 - 621 = -60
-60 ÷ 621 = -0.0966183574879227
-0.0966183574879227 x 100 = -9.66%