122.5% is the change from 400 to 890
Calculation steps:
[( 890 - 400 ) ÷ 400] x 100 = 122.5%
Formula
Percentage change = [(890 - 400) / 400] x 100
Subtract the new number by the original number
890 - 400 = 490
490 ÷ 400 = 1.225
1.225 x 100 = 122.5%
Example