506.3% is the change from 127 to 770
Calculation steps:
[( 770 - 127 ) ÷ 127] x 100 = 506.3%
Formula
Percentage change = [(770 - 127) / 127] x 100
Subtract the new number by the original number
770 - 127 = 643
643 ÷ 127 = 5.062992125984252
5.062992125984252 x 100 = 506.3%