-6.51% is the change from 921 to 861
Calculation steps:
[( 861 - 921 ) ÷ 921] x 100 = -6.51%
Formula
Percentage change = [(861 - 921) / 921] x 100
Subtract the new number by the original number
861 - 921 = -60
-60 ÷ 921 = -0.06514657980456026
-0.06514657980456026 x 100 = -6.51%