12442.86% is the change from 7 to 878
Calculation steps:
[( 878 - 7 ) ÷ 7] x 100 = 12442.86%
Formula
Percentage change = [(878 - 7) / 7] x 100
Subtract the new number by the original number
878 - 7 = 871
871 ÷ 7 = 124.42857142857143
124.42857142857143 x 100 = 12442.86%