9.51% is the change from 841 to 921
Calculation steps:
[( 921 - 841 ) ÷ 841] x 100 = 9.51%
Formula
Percentage change = [(921 - 841) / 841] x 100
Subtract the new number by the original number
921 - 841 = 80
80 ÷ 841 = 0.09512485136741974
0.09512485136741974 x 100 = 9.51%