-70.36% is the change from 523 to 155
Calculation steps:
[( 155 - 523 ) ÷ 523] x 100 = -70.36%
Formula
Percentage change = [(155 - 523) / 523] x 100
Subtract the new number by the original number
155 - 523 = -368
-368 ÷ 523 = -0.7036328871892925
-0.7036328871892925 x 100 = -70.36%