67.7% is the change from 579 to 971
Calculation steps:
[( 971 - 579 ) ÷ 579] x 100 = 67.7%
Formula
Percentage change = [(971 - 579) / 579] x 100
Subtract the new number by the original number
971 - 579 = 392
392 ÷ 579 = 0.6770293609671848
0.6770293609671848 x 100 = 67.7%