-97.84% is the change from 555 to 12
Calculation steps:
[( 12 - 555 ) ÷ 555] x 100 = -97.84%
Formula
Percentage change = [(12 - 555) / 555] x 100
Subtract the new number by the original number
12 - 555 = -543
-543 ÷ 555 = -0.9783783783783784
-0.9783783783783784 x 100 = -97.84%