-40.34% is the change from 523 to 312
Calculation steps:
[( 312 - 523 ) ÷ 523] x 100 = -40.34%
Formula
Percentage change = [(312 - 523) / 523] x 100
Subtract the new number by the original number
312 - 523 = -211
-211 ÷ 523 = -0.40344168260038243
-0.40344168260038243 x 100 = -40.34%