-81.28% is the change from 545 to 102
Calculation steps:
[( 102 - 545 ) ÷ 545] x 100 = -81.28%
Formula
Percentage change = [(102 - 545) / 545] x 100
Subtract the new number by the original number
102 - 545 = -443
-443 ÷ 545 = -0.8128440366972477
-0.8128440366972477 x 100 = -81.28%