-64.6% is the change from 613 to 217
Calculation steps:
[( 217 - 613 ) ÷ 613] x 100 = -64.6%
Formula
Percentage change = [(217 - 613) / 613] x 100
Subtract the new number by the original number
217 - 613 = -396
-396 ÷ 613 = -0.6460032626427407
-0.6460032626427407 x 100 = -64.6%