693.14% is the change from 102 to 809
Calculation steps:
[( 809 - 102 ) ÷ 102] x 100 = 693.14%
Formula
Percentage change = [(809 - 102) / 102] x 100
Subtract the new number by the original number
809 - 102 = 707
707 ÷ 102 = 6.931372549019608
6.931372549019608 x 100 = 693.14%