-76.29% is the change from 620 to 147
Calculation steps:
[( 147 - 620 ) ÷ 620] x 100 = -76.29%
Formula
Percentage change = [(147 - 620) / 620] x 100
Subtract the new number by the original number
147 - 620 = -473
-473 ÷ 620 = -0.7629032258064516
-0.7629032258064516 x 100 = -76.29%