-64.46% is the change from 605 to 215
Calculation steps:
[( 215 - 605 ) ÷ 605] x 100 = -64.46%
Formula
Percentage change = [(215 - 605) / 605] x 100
Subtract the new number by the original number
215 - 605 = -390
-390 ÷ 605 = -0.6446280991735537
-0.6446280991735537 x 100 = -64.46%