-84.93% is the change from 677 to 102
Calculation steps:
[( 102 - 677 ) ÷ 677] x 100 = -84.93%
Formula
Percentage change = [(102 - 677) / 677] x 100
Subtract the new number by the original number
102 - 677 = -575
-575 ÷ 677 = -0.8493353028064993
-0.8493353028064993 x 100 = -84.93%