6941.67% is the change from 12 to 845
Calculation steps:
[( 845 - 12 ) ÷ 12] x 100 = 6941.67%
Formula
Percentage change = [(845 - 12) / 12] x 100
Subtract the new number by the original number
845 - 12 = 833
833 ÷ 12 = 69.41666666666667
69.41666666666667 x 100 = 6941.67%