69.9% is the change from 588 to 999
Calculation steps:
[( 999 - 588 ) ÷ 588] x 100 = 69.9%
Formula
Percentage change = [(999 - 588) / 588] x 100
Subtract the new number by the original number
999 - 588 = 411
411 ÷ 588 = 0.6989795918367347
0.6989795918367347 x 100 = 69.9%