-76.33% is the change from 621 to 147
Calculation steps:
[( 147 - 621 ) ÷ 621] x 100 = -76.33%
Formula
Percentage change = [(147 - 621) / 621] x 100
Subtract the new number by the original number
147 - 621 = -474
-474 ÷ 621 = -0.7632850241545893
-0.7632850241545893 x 100 = -76.33%