-97.22% is the change from 827 to 23
Calculation steps:
[( 23 - 827 ) ÷ 827] x 100 = -97.22%
Formula
Percentage change = [(23 - 827) / 827] x 100
Subtract the new number by the original number
23 - 827 = -804
-804 ÷ 827 = -0.9721886336154776
-0.9721886336154776 x 100 = -97.22%