-61.51% is the change from 621 to 239
Calculation steps:
[( 239 - 621 ) ÷ 621] x 100 = -61.51%
Formula
Percentage change = [(239 - 621) / 621] x 100
Subtract the new number by the original number
239 - 621 = -382
-382 ÷ 621 = -0.6151368760064412
-0.6151368760064412 x 100 = -61.51%