-54.55% is the change from 473 to 215
Calculation steps:
[( 215 - 473 ) ÷ 473] x 100 = -54.55%
Formula
Percentage change = [(215 - 473) / 473] x 100
Subtract the new number by the original number
215 - 473 = -258
-258 ÷ 473 = -0.5454545454545454
-0.5454545454545454 x 100 = -54.55%