-87.67% is the change from 827 to 102
Calculation steps:
[( 102 - 827 ) ÷ 827] x 100 = -87.67%
Formula
Percentage change = [(102 - 827) / 827] x 100
Subtract the new number by the original number
102 - 827 = -725
-725 ÷ 827 = -0.8766626360338573
-0.8766626360338573 x 100 = -87.67%