-72.28% is the change from 523 to 145
Calculation steps:
[( 145 - 523 ) ÷ 523] x 100 = -72.28%
Formula
Percentage change = [(145 - 523) / 523] x 100
Subtract the new number by the original number
145 - 523 = -378
-378 ÷ 523 = -0.722753346080306
-0.722753346080306 x 100 = -72.28%