-77.42% is the change from 970 to 219
Calculation steps:
[( 219 - 970 ) ÷ 970] x 100 = -77.42%
Formula
Percentage change = [(219 - 970) / 970] x 100
Subtract the new number by the original number
219 - 970 = -751
-751 ÷ 970 = -0.7742268041237114
-0.7742268041237114 x 100 = -77.42%