-76.97% is the change from 621 to 143
Calculation steps:
[( 143 - 621 ) ÷ 621] x 100 = -76.97%
Formula
Percentage change = [(143 - 621) / 621] x 100
Subtract the new number by the original number
143 - 621 = -478
-478 ÷ 621 = -0.7697262479871175
-0.7697262479871175 x 100 = -76.97%