-64.93% is the change from 613 to 215
Calculation steps:
[( 215 - 613 ) ÷ 613] x 100 = -64.93%
Formula
Percentage change = [(215 - 613) / 613] x 100
Subtract the new number by the original number
215 - 613 = -398
-398 ÷ 613 = -0.6492659053833605
-0.6492659053833605 x 100 = -64.93%