-76.61% is the change from 620 to 145
Calculation steps:
[( 145 - 620 ) ÷ 620] x 100 = -76.61%
Formula
Percentage change = [(145 - 620) / 620] x 100
Subtract the new number by the original number
145 - 620 = -475
-475 ÷ 620 = -0.7661290322580645
-0.7661290322580645 x 100 = -76.61%