-76.31% is the change from 933 to 221
Calculation steps:
[( 221 - 933 ) ÷ 933] x 100 = -76.31%
Formula
Percentage change = [(221 - 933) / 933] x 100
Subtract the new number by the original number
221 - 933 = -712
-712 ÷ 933 = -0.7631296891747053
-0.7631296891747053 x 100 = -76.31%