-67.79% is the change from 621 to 200
Calculation steps:
[( 200 - 621 ) ÷ 621] x 100 = -67.79%
Formula
Percentage change = [(200 - 621) / 621] x 100
Subtract the new number by the original number
200 - 621 = -421
-421 ÷ 621 = -0.677938808373591
-0.677938808373591 x 100 = -67.79%