-90.49% is the change from 841 to 80
Calculation steps:
[( 80 - 841 ) ÷ 841] x 100 = -90.49%
Formula
Percentage change = [(80 - 841) / 841] x 100
Subtract the new number by the original number
80 - 841 = -761
-761 ÷ 841 = -0.9048751486325802
-0.9048751486325802 x 100 = -90.49%