197.79% is the change from 271 to 807
Calculation steps:
[( 807 - 271 ) ÷ 271] x 100 = 197.79%
Formula
Percentage change = [(807 - 271) / 271] x 100
Subtract the new number by the original number
807 - 271 = 536
536 ÷ 271 = 1.977859778597786
1.977859778597786 x 100 = 197.79%