34.27% is the change from 391 to 525
Calculation steps:
[( 525 - 391 ) ÷ 391] x 100 = 34.27%
Formula
Percentage change = [(525 - 391) / 391] x 100
Subtract the new number by the original number
525 - 391 = 134
134 ÷ 391 = 0.34271099744245526
0.34271099744245526 x 100 = 34.27%