-40.05% is the change from 824 to 494
Calculation steps:
[( 494 - 824 ) ÷ 824] x 100 = -40.05%
Formula
Percentage change = [(494 - 824) / 824] x 100
Subtract the new number by the original number
494 - 824 = -330
-330 ÷ 824 = -0.40048543689320387
-0.40048543689320387 x 100 = -40.05%