62.75% is the change from 400 to 651
Calculation steps:
[( 651 - 400 ) ÷ 400] x 100 = 62.75%
Formula
Percentage change = [(651 - 400) / 400] x 100
Subtract the new number by the original number
651 - 400 = 251
251 ÷ 400 = 0.6275
0.6275 x 100 = 62.75%