-0.19% is the change from 522 to 521
Calculation steps:
[( 521 - 522 ) ÷ 522] x 100 = -0.19%
Formula
Percentage change = [(521 - 522) / 522] x 100
Subtract the new number by the original number
521 - 522 = -1
-1 ÷ 522 = -0.0019157088122605363
-0.0019157088122605363 x 100 = -0.19%