1243.86% is the change from 57 to 766
Calculation steps:
[( 766 - 57 ) ÷ 57] x 100 = 1243.86%
Formula
Percentage change = [(766 - 57) / 57] x 100
Subtract the new number by the original number
766 - 57 = 709
709 ÷ 57 = 12.43859649122807
12.43859649122807 x 100 = 1243.86%