-86.07% is the change from 603 to 84
Calculation steps:
[( 84 - 603 ) ÷ 603] x 100 = -86.07%
Formula
Percentage change = [(84 - 603) / 603] x 100
Subtract the new number by the original number
84 - 603 = -519
-519 ÷ 603 = -0.8606965174129353
-0.8606965174129353 x 100 = -86.07%