-77.29% is the change from 973 to 221
Calculation steps:
[( 221 - 973 ) ÷ 973] x 100 = -77.29%
Formula
Percentage change = [(221 - 973) / 973] x 100
Subtract the new number by the original number
221 - 973 = -752
-752 ÷ 973 = -0.7728674203494348
-0.7728674203494348 x 100 = -77.29%