-36.08% is the change from 521 to 333
Calculation steps:
[( 333 - 521 ) ÷ 521] x 100 = -36.08%
Formula
Percentage change = [(333 - 521) / 521] x 100
Subtract the new number by the original number
333 - 521 = -188
-188 ÷ 521 = -0.36084452975047987
-0.36084452975047987 x 100 = -36.08%