-94.58% is the change from 498 to 27
Calculation steps:
[( 27 - 498 ) ÷ 498] x 100 = -94.58%
Formula
Percentage change = [(27 - 498) / 498] x 100
Subtract the new number by the original number
27 - 498 = -471
-471 ÷ 498 = -0.9457831325301205
-0.9457831325301205 x 100 = -94.58%