69.97% is the change from 343 to 583
Calculation steps:
[( 583 - 343 ) ÷ 343] x 100 = 69.97%
Formula
Percentage change = [(583 - 343) / 343] x 100
Subtract the new number by the original number
583 - 343 = 240
240 ÷ 343 = 0.6997084548104956
0.6997084548104956 x 100 = 69.97%