-6.8% is the change from 927 to 864
Calculation steps:
[( 864 - 927 ) ÷ 927] x 100 = -6.8%
Formula
Percentage change = [(864 - 927) / 927] x 100
Subtract the new number by the original number
864 - 927 = -63
-63 ÷ 927 = -0.06796116504854369
-0.06796116504854369 x 100 = -6.8%