-76.49% is the change from 970 to 228
Calculation steps:
[( 228 - 970 ) ÷ 970] x 100 = -76.49%
Formula
Percentage change = [(228 - 970) / 970] x 100
Subtract the new number by the original number
228 - 970 = -742
-742 ÷ 970 = -0.7649484536082474
-0.7649484536082474 x 100 = -76.49%