-97.59% is the change from 498 to 12
Calculation steps:
[( 12 - 498 ) ÷ 498] x 100 = -97.59%
Formula
Percentage change = [(12 - 498) / 498] x 100
Subtract the new number by the original number
12 - 498 = -486
-486 ÷ 498 = -0.9759036144578314
-0.9759036144578314 x 100 = -97.59%