-41.96% is the change from 491 to 285
Calculation steps:
[( 285 - 491 ) ÷ 491] x 100 = -41.96%
Formula
Percentage change = [(285 - 491) / 491] x 100
Subtract the new number by the original number
285 - 491 = -206
-206 ÷ 491 = -0.4195519348268839
-0.4195519348268839 x 100 = -41.96%