-65.06% is the change from 621 to 217
Calculation steps:
[( 217 - 621 ) ÷ 621] x 100 = -65.06%
Formula
Percentage change = [(217 - 621) / 621] x 100
Subtract the new number by the original number
217 - 621 = -404
-404 ÷ 621 = -0.6505636070853462
-0.6505636070853462 x 100 = -65.06%