70.29% is the change from 488 to 831
Calculation steps:
[( 831 - 488 ) ÷ 488] x 100 = 70.29%
Formula
Percentage change = [(831 - 488) / 488] x 100
Subtract the new number by the original number
831 - 488 = 343
343 ÷ 488 = 0.7028688524590164
0.7028688524590164 x 100 = 70.29%