-84.73% is the change from 550 to 84
Calculation steps:
[( 84 - 550 ) ÷ 550] x 100 = -84.73%
Formula
Percentage change = [(84 - 550) / 550] x 100
Subtract the new number by the original number
84 - 550 = -466
-466 ÷ 550 = -0.8472727272727273
-0.8472727272727273 x 100 = -84.73%