0.49% is the change from 617 to 620
Calculation steps:
[( 620 - 617 ) ÷ 617] x 100 = 0.49%
Formula
Percentage change = [(620 - 617) / 617] x 100
Subtract the new number by the original number
620 - 617 = 3
3 ÷ 617 = 0.004862236628849271
0.004862236628849271 x 100 = 0.49%