400% is the change from 163 to 815
Calculation steps:
[( 815 - 163 ) ÷ 163] x 100 = 400%
Formula
Percentage change = [(815 - 163) / 163] x 100
Subtract the new number by the original number
815 - 163 = 652
652 ÷ 163 = 4
4 x 100 = 400%
Example