297.21% is the change from 251 to 997
Calculation steps:
[( 997 - 251 ) ÷ 251] x 100 = 297.21%
Formula
Percentage change = [(997 - 251) / 251] x 100
Subtract the new number by the original number
997 - 251 = 746
746 ÷ 251 = 2.9721115537848606
2.9721115537848606 x 100 = 297.21%