-80.23% is the change from 516 to 102
Calculation steps:
[( 102 - 516 ) ÷ 516] x 100 = -80.23%
Formula
Percentage change = [(102 - 516) / 516] x 100
Subtract the new number by the original number
102 - 516 = -414
-414 ÷ 516 = -0.8023255813953488
-0.8023255813953488 x 100 = -80.23%