-84.33% is the change from 651 to 102
Calculation steps:
[( 102 - 651 ) ÷ 651] x 100 = -84.33%
Formula
Percentage change = [(102 - 651) / 651] x 100
Subtract the new number by the original number
102 - 651 = -549
-549 ÷ 651 = -0.8433179723502304
-0.8433179723502304 x 100 = -84.33%