-41.41% is the change from 850 to 498
Calculation steps:
[( 498 - 850 ) ÷ 850] x 100 = -41.41%
Formula
Percentage change = [(498 - 850) / 850] x 100
Subtract the new number by the original number
498 - 850 = -352
-352 ÷ 850 = -0.41411764705882353
-0.41411764705882353 x 100 = -41.41%