4.75% is the change from 400 to 419
Calculation steps:
[( 419 - 400 ) ÷ 400] x 100 = 4.75%
Formula
Percentage change = [(419 - 400) / 400] x 100
Subtract the new number by the original number
419 - 400 = 19
19 ÷ 400 = 0.0475
0.0475 x 100 = 4.75%
Example