-81.45% is the change from 841 to 156
Calculation steps:
[( 156 - 841 ) ÷ 841] x 100 = -81.45%
Formula
Percentage change = [(156 - 841) / 841] x 100
Subtract the new number by the original number
156 - 841 = -685
-685 ÷ 841 = -0.8145065398335315
-0.8145065398335315 x 100 = -81.45%