563.41% is the change from 123 to 816
Calculation steps:
[( 816 - 123 ) ÷ 123] x 100 = 563.41%
Formula
Percentage change = [(816 - 123) / 123] x 100
Subtract the new number by the original number
816 - 123 = 693
693 ÷ 123 = 5.634146341463414
5.634146341463414 x 100 = 563.41%