81.74% is the change from 356 to 647
Calculation steps:
[( 647 - 356 ) ÷ 356] x 100 = 81.74%
Formula
Percentage change = [(647 - 356) / 356] x 100
Subtract the new number by the original number
647 - 356 = 291
291 ÷ 356 = 0.8174157303370787
0.8174157303370787 x 100 = 81.74%