39.94% is the change from 348 to 487
Calculation steps:
[( 487 - 348 ) ÷ 348] x 100 = 39.94%
Formula
Percentage change = [(487 - 348) / 348] x 100
Subtract the new number by the original number
487 - 348 = 139
139 ÷ 348 = 0.3994252873563218
0.3994252873563218 x 100 = 39.94%