92.21% is the change from 488 to 938
Calculation steps:
[( 938 - 488 ) ÷ 488] x 100 = 92.21%
Formula
Percentage change = [(938 - 488) / 488] x 100
Subtract the new number by the original number
938 - 488 = 450
450 ÷ 488 = 0.9221311475409836
0.9221311475409836 x 100 = 92.21%