60.73% is the change from 247 to 397
Calculation steps:
[( 397 - 247 ) ÷ 247] x 100 = 60.73%
Formula
Percentage change = [(397 - 247) / 247] x 100
Subtract the new number by the original number
397 - 247 = 150
150 ÷ 247 = 0.6072874493927125
0.6072874493927125 x 100 = 60.73%