777.78% is the change from 18 to 158
Calculation steps:
[( 158 - 18 ) ÷ 18] x 100 = 777.78%
Formula
Percentage change = [(158 - 18) / 18] x 100
Subtract the new number by the original number
158 - 18 = 140
140 ÷ 18 = 7.777777777777778
7.777777777777778 x 100 = 777.78%