-76.73% is the change from 623 to 145
Calculation steps:
[( 145 - 623 ) ÷ 623] x 100 = -76.73%
Formula
Percentage change = [(145 - 623) / 623] x 100
Subtract the new number by the original number
145 - 623 = -478
-478 ÷ 623 = -0.7672552166934189
-0.7672552166934189 x 100 = -76.73%