376.61% is the change from 171 to 815
Calculation steps:
[( 815 - 171 ) ÷ 171] x 100 = 376.61%
Formula
Percentage change = [(815 - 171) / 171] x 100
Subtract the new number by the original number
815 - 171 = 644
644 ÷ 171 = 3.7660818713450293
3.7660818713450293 x 100 = 376.61%