11728.57% is the change from 7 to 828
Calculation steps:
[( 828 - 7 ) ÷ 7] x 100 = 11728.57%
Formula
Percentage change = [(828 - 7) / 7] x 100
Subtract the new number by the original number
828 - 7 = 821
821 ÷ 7 = 117.28571428571429
117.28571428571429 x 100 = 11728.57%