64.89% is the change from 581 to 958
Calculation steps:
[( 958 - 581 ) ÷ 581] x 100 = 64.89%
Formula
Percentage change = [(958 - 581) / 581] x 100
Subtract the new number by the original number
958 - 581 = 377
377 ÷ 581 = 0.648881239242685
0.648881239242685 x 100 = 64.89%