66.89% is the change from 598 to 998
Calculation steps:
[( 998 - 598 ) ÷ 598] x 100 = 66.89%
Formula
Percentage change = [(998 - 598) / 598] x 100
Subtract the new number by the original number
998 - 598 = 400
400 ÷ 598 = 0.6688963210702341
0.6688963210702341 x 100 = 66.89%