57.79% is the change from 488 to 770
Calculation steps:
[( 770 - 488 ) ÷ 488] x 100 = 57.79%
Formula
Percentage change = [(770 - 488) / 488] x 100
Subtract the new number by the original number
770 - 488 = 282
282 ÷ 488 = 0.5778688524590164
0.5778688524590164 x 100 = 57.79%