-57.39% is the change from 521 to 222
Calculation steps:
[( 222 - 521 ) ÷ 521] x 100 = -57.39%
Formula
Percentage change = [(222 - 521) / 521] x 100
Subtract the new number by the original number
222 - 521 = -299
-299 ÷ 521 = -0.5738963531669866
-0.5738963531669866 x 100 = -57.39%