297.66% is the change from 171 to 680
Calculation steps:
[( 680 - 171 ) ÷ 171] x 100 = 297.66%
Formula
Percentage change = [(680 - 171) / 171] x 100
Subtract the new number by the original number
680 - 171 = 509
509 ÷ 171 = 2.9766081871345027
2.9766081871345027 x 100 = 297.66%
Example