-8.86% is the change from 621 to 566
Calculation steps:
[( 566 - 621 ) ÷ 621] x 100 = -8.86%
Formula
Percentage change = [(566 - 621) / 621] x 100
Subtract the new number by the original number
566 - 621 = -55
-55 ÷ 621 = -0.08856682769726248
-0.08856682769726248 x 100 = -8.86%