-85.98% is the change from 599 to 84
Calculation steps:
[( 84 - 599 ) ÷ 599] x 100 = -85.98%
Formula
Percentage change = [(84 - 599) / 599] x 100
Subtract the new number by the original number
84 - 599 = -515
-515 ÷ 599 = -0.8597662771285476
-0.8597662771285476 x 100 = -85.98%