-91.26% is the change from 927 to 81
Calculation steps:
[( 81 - 927 ) ÷ 927] x 100 = -91.26%
Formula
Percentage change = [(81 - 927) / 927] x 100
Subtract the new number by the original number
81 - 927 = -846
-846 ÷ 927 = -0.912621359223301
-0.912621359223301 x 100 = -91.26%