-40.07% is the change from 841 to 504
Calculation steps:
[( 504 - 841 ) ÷ 841] x 100 = -40.07%
Formula
Percentage change = [(504 - 841) / 841] x 100
Subtract the new number by the original number
504 - 841 = -337
-337 ÷ 841 = -0.40071343638525564
-0.40071343638525564 x 100 = -40.07%