-82.07% is the change from 513 to 92
Calculation steps:
[( 92 - 513 ) ÷ 513] x 100 = -82.07%
Formula
Percentage change = [(92 - 513) / 513] x 100
Subtract the new number by the original number
92 - 513 = -421
-421 ÷ 513 = -0.8206627680311891
-0.8206627680311891 x 100 = -82.07%