4177.78% is the change from 18 to 770
Calculation steps:
[( 770 - 18 ) ÷ 18] x 100 = 4177.78%
Formula
Percentage change = [(770 - 18) / 18] x 100
Subtract the new number by the original number
770 - 18 = 752
752 ÷ 18 = 41.77777777777778
41.77777777777778 x 100 = 4177.78%