-77.73% is the change from 970 to 216
Calculation steps:
[( 216 - 970 ) ÷ 970] x 100 = -77.73%
Formula
Percentage change = [(216 - 970) / 970] x 100
Subtract the new number by the original number
216 - 970 = -754
-754 ÷ 970 = -0.777319587628866
-0.777319587628866 x 100 = -77.73%