12042.86% is the change from 7 to 850
Calculation steps:
[( 850 - 7 ) ÷ 7] x 100 = 12042.86%
Formula
Percentage change = [(850 - 7) / 7] x 100
Subtract the new number by the original number
850 - 7 = 843
843 ÷ 7 = 120.42857142857143
120.42857142857143 x 100 = 12042.86%