122.18% is the change from 284 to 631
Calculation steps:
[( 631 - 284 ) ÷ 284] x 100 = 122.18%
Formula
Percentage change = [(631 - 284) / 284] x 100
Subtract the new number by the original number
631 - 284 = 347
347 ÷ 284 = 1.221830985915493
1.221830985915493 x 100 = 122.18%