71.14% is the change from 343 to 587
Calculation steps:
[( 587 - 343 ) ÷ 343] x 100 = 71.14%
Formula
Percentage change = [(587 - 343) / 343] x 100
Subtract the new number by the original number
587 - 343 = 244
244 ÷ 343 = 0.7113702623906706
0.7113702623906706 x 100 = 71.14%