31.89% is the change from 301 to 397
Calculation steps:
[( 397 - 301 ) ÷ 301] x 100 = 31.89%
Formula
Percentage change = [(397 - 301) / 301] x 100
Subtract the new number by the original number
397 - 301 = 96
96 ÷ 301 = 0.31893687707641194
0.31893687707641194 x 100 = 31.89%