-73.05% is the change from 538 to 145
Calculation steps:
[( 145 - 538 ) ÷ 538] x 100 = -73.05%
Formula
Percentage change = [(145 - 538) / 538] x 100
Subtract the new number by the original number
145 - 538 = -393
-393 ÷ 538 = -0.7304832713754646
-0.7304832713754646 x 100 = -73.05%