-77.31% is the change from 974 to 221
Calculation steps:
[( 221 - 974 ) ÷ 974] x 100 = -77.31%
Formula
Percentage change = [(221 - 974) / 974] x 100
Subtract the new number by the original number
221 - 974 = -753
-753 ÷ 974 = -0.7731006160164271
-0.7731006160164271 x 100 = -77.31%