-87.47% is the change from 814 to 102
Calculation steps:
[( 102 - 814 ) ÷ 814] x 100 = -87.47%
Formula
Percentage change = [(102 - 814) / 814] x 100
Subtract the new number by the original number
102 - 814 = -712
-712 ÷ 814 = -0.8746928746928747
-0.8746928746928747 x 100 = -87.47%