-89.18% is the change from 841 to 91
Calculation steps:
[( 91 - 841 ) ÷ 841] x 100 = -89.18%
Formula
Percentage change = [(91 - 841) / 841] x 100
Subtract the new number by the original number
91 - 841 = -750
-750 ÷ 841 = -0.89179548156956
-0.89179548156956 x 100 = -89.18%