-77.37% is the change from 972 to 220
Calculation steps:
[( 220 - 972 ) ÷ 972] x 100 = -77.37%
Formula
Percentage change = [(220 - 972) / 972] x 100
Subtract the new number by the original number
220 - 972 = -752
-752 ÷ 972 = -0.7736625514403292
-0.7736625514403292 x 100 = -77.37%