27.05% is the change from 488 to 620
Calculation steps:
[( 620 - 488 ) ÷ 488] x 100 = 27.05%
Formula
Percentage change = [(620 - 488) / 488] x 100
Subtract the new number by the original number
620 - 488 = 132
132 ÷ 488 = 0.27049180327868855
0.27049180327868855 x 100 = 27.05%