160.73% is the change from 247 to 644
Calculation steps:
[( 644 - 247 ) ÷ 247] x 100 = 160.73%
Formula
Percentage change = [(644 - 247) / 247] x 100
Subtract the new number by the original number
644 - 247 = 397
397 ÷ 247 = 1.6072874493927125
1.6072874493927125 x 100 = 160.73%