-60% is the change from 970 to 388
Calculation steps:
[( 388 - 970 ) ÷ 970] x 100 = -60%
Formula
Percentage change = [(388 - 970) / 970] x 100
Subtract the new number by the original number
388 - 970 = -582
-582 ÷ 970 = -0.6
-0.6 x 100 = -60%
Example