-40.31% is the change from 841 to 502
Calculation steps:
[( 502 - 841 ) ÷ 841] x 100 = -40.31%
Formula
Percentage change = [(502 - 841) / 841] x 100
Subtract the new number by the original number
502 - 841 = -339
-339 ÷ 841 = -0.40309155766944116
-0.40309155766944116 x 100 = -40.31%