56.97% is the change from 488 to 766
Calculation steps:
[( 766 - 488 ) ÷ 488] x 100 = 56.97%
Formula
Percentage change = [(766 - 488) / 488] x 100
Subtract the new number by the original number
766 - 488 = 278
278 ÷ 488 = 0.569672131147541
0.569672131147541 x 100 = 56.97%