643.48% is the change from 115 to 855
Calculation steps:
[( 855 - 115 ) ÷ 115] x 100 = 643.48%
Formula
Percentage change = [(855 - 115) / 115] x 100
Subtract the new number by the original number
855 - 115 = 740
740 ÷ 115 = 6.434782608695652
6.434782608695652 x 100 = 643.48%