691.06% is the change from 123 to 973
Calculation steps:
[( 973 - 123 ) ÷ 123] x 100 = 691.06%
Formula
Percentage change = [(973 - 123) / 123] x 100
Subtract the new number by the original number
973 - 123 = 850
850 ÷ 123 = 6.9105691056910565
6.9105691056910565 x 100 = 691.06%