251.06% is the change from 284 to 997
Calculation steps:
[( 997 - 284 ) ÷ 284] x 100 = 251.06%
Formula
Percentage change = [(997 - 284) / 284] x 100
Subtract the new number by the original number
997 - 284 = 713
713 ÷ 284 = 2.51056338028169
2.51056338028169 x 100 = 251.06%