54.3% is the change from 407 to 628
Calculation steps:
[( 628 - 407 ) ÷ 407] x 100 = 54.3%
Formula
Percentage change = [(628 - 407) / 407] x 100
Subtract the new number by the original number
628 - 407 = 221
221 ÷ 407 = 0.542997542997543
0.542997542997543 x 100 = 54.3%