-86.68% is the change from 766 to 102
Calculation steps:
[( 102 - 766 ) ÷ 766] x 100 = -86.68%
Formula
Percentage change = [(102 - 766) / 766] x 100
Subtract the new number by the original number
102 - 766 = -664
-664 ÷ 766 = -0.8668407310704961
-0.8668407310704961 x 100 = -86.68%