-6.21% is the change from 918 to 861
Calculation steps:
[( 861 - 918 ) ÷ 918] x 100 = -6.21%
Formula
Percentage change = [(861 - 918) / 918] x 100
Subtract the new number by the original number
861 - 918 = -57
-57 ÷ 918 = -0.06209150326797386
-0.06209150326797386 x 100 = -6.21%