-3.45% is the change from 841 to 812
Calculation steps:
[( 812 - 841 ) ÷ 841] x 100 = -3.45%
Formula
Percentage change = [(812 - 841) / 841] x 100
Subtract the new number by the original number
812 - 841 = -29
-29 ÷ 841 = -0.034482758620689655
-0.034482758620689655 x 100 = -3.45%