201.21% is the change from 331 to 997
Calculation steps:
[( 997 - 331 ) ÷ 331] x 100 = 201.21%
Formula
Percentage change = [(997 - 331) / 331] x 100
Subtract the new number by the original number
997 - 331 = 666
666 ÷ 331 = 2.012084592145015
2.012084592145015 x 100 = 201.21%