3.5% is the change from 628 to 650
Calculation steps:
[( 650 - 628 ) ÷ 628] x 100 = 3.5%
Formula
Percentage change = [(650 - 628) / 628] x 100
Subtract the new number by the original number
650 - 628 = 22
22 ÷ 628 = 0.03503184713375796
0.03503184713375796 x 100 = 3.5%