157.77% is the change from 251 to 647
Calculation steps:
[( 647 - 251 ) ÷ 251] x 100 = 157.77%
Formula
Percentage change = [(647 - 251) / 251] x 100
Subtract the new number by the original number
647 - 251 = 396
396 ÷ 251 = 1.5776892430278884
1.5776892430278884 x 100 = 157.77%