84.23% is the change from 520 to 958
Calculation steps:
[( 958 - 520 ) ÷ 520] x 100 = 84.23%
Formula
Percentage change = [(958 - 520) / 520] x 100
Subtract the new number by the original number
958 - 520 = 438
438 ÷ 520 = 0.8423076923076923
0.8423076923076923 x 100 = 84.23%