-54.26% is the change from 470 to 215
Calculation steps:
[( 215 - 470 ) ÷ 470] x 100 = -54.26%
Formula
Percentage change = [(215 - 470) / 470] x 100
Subtract the new number by the original number
215 - 470 = -255
-255 ÷ 470 = -0.5425531914893617
-0.5425531914893617 x 100 = -54.26%