-10.06% is the change from 934 to 840
Calculation steps:
[( 840 - 934 ) ÷ 934] x 100 = -10.06%
Formula
Percentage change = [(840 - 934) / 934] x 100
Subtract the new number by the original number
840 - 934 = -94
-94 ÷ 934 = -0.1006423982869379
-0.1006423982869379 x 100 = -10.06%