30.18% is the change from 487 to 634
Calculation steps:
[( 634 - 487 ) ÷ 487] x 100 = 30.18%
Formula
Percentage change = [(634 - 487) / 487] x 100
Subtract the new number by the original number
634 - 487 = 147
147 ÷ 487 = 0.30184804928131415
0.30184804928131415 x 100 = 30.18%