-75.58% is the change from 905 to 221
Calculation steps:
[( 221 - 905 ) ÷ 905] x 100 = -75.58%
Formula
Percentage change = [(221 - 905) / 905] x 100
Subtract the new number by the original number
221 - 905 = -684
-684 ÷ 905 = -0.7558011049723757
-0.7558011049723757 x 100 = -75.58%