671.54% is the change from 123 to 949
Calculation steps:
[( 949 - 123 ) ÷ 123] x 100 = 671.54%
Formula
Percentage change = [(949 - 123) / 123] x 100
Subtract the new number by the original number
949 - 123 = 826
826 ÷ 123 = 6.715447154471545
6.715447154471545 x 100 = 671.54%