-26% is the change from 523 to 387
Calculation steps:
[( 387 - 523 ) ÷ 523] x 100 = -26%
Formula
Percentage change = [(387 - 523) / 523] x 100
Subtract the new number by the original number
387 - 523 = -136
-136 ÷ 523 = -0.26003824091778205
-0.26003824091778205 x 100 = -26%