118.6% is the change from 215 to 470
Calculation steps:
[( 470 - 215 ) ÷ 215] x 100 = 118.6%
Formula
Percentage change = [(470 - 215) / 215] x 100
Subtract the new number by the original number
470 - 215 = 255
255 ÷ 215 = 1.186046511627907
1.186046511627907 x 100 = 118.6%