-76.26% is the change from 931 to 221
Calculation steps:
[( 221 - 931 ) ÷ 931] x 100 = -76.26%
Formula
Percentage change = [(221 - 931) / 931] x 100
Subtract the new number by the original number
221 - 931 = -710
-710 ÷ 931 = -0.7626208378088077
-0.7626208378088077 x 100 = -76.26%