21.33% is the change from 647 to 785
Calculation steps:
[( 785 - 647 ) ÷ 647] x 100 = 21.33%
Formula
Percentage change = [(785 - 647) / 647] x 100
Subtract the new number by the original number
785 - 647 = 138
138 ÷ 647 = 0.2132921174652241
0.2132921174652241 x 100 = 21.33%