-45.7% is the change from 523 to 284
Calculation steps:
[( 284 - 523 ) ÷ 523] x 100 = -45.7%
Formula
Percentage change = [(284 - 523) / 523] x 100
Subtract the new number by the original number
284 - 523 = -239
-239 ÷ 523 = -0.4569789674952199
-0.4569789674952199 x 100 = -45.7%