-1.29% is the change from 927 to 915
Calculation steps:
[( 915 - 927 ) ÷ 927] x 100 = -1.29%
Formula
Percentage change = [(915 - 927) / 927] x 100
Subtract the new number by the original number
915 - 927 = -12
-12 ÷ 927 = -0.012944983818770227
-0.012944983818770227 x 100 = -1.29%