-77.36% is the change from 976 to 221
Calculation steps:
[( 221 - 976 ) ÷ 976] x 100 = -77.36%
Formula
Percentage change = [(221 - 976) / 976] x 100
Subtract the new number by the original number
221 - 976 = -755
-755 ÷ 976 = -0.7735655737704918
-0.7735655737704918 x 100 = -77.36%