31.22% is the change from 647 to 849
Calculation steps:
[( 849 - 647 ) ÷ 647] x 100 = 31.22%
Formula
Percentage change = [(849 - 647) / 647] x 100
Subtract the new number by the original number
849 - 647 = 202
202 ÷ 647 = 0.312210200927357
0.312210200927357 x 100 = 31.22%