-0.1% is the change from 970 to 969
Calculation steps:
[( 969 - 970 ) ÷ 970] x 100 = -0.1%
Formula
Percentage change = [(969 - 970) / 970] x 100
Subtract the new number by the original number
969 - 970 = -1
-1 ÷ 970 = -0.0010309278350515464
-0.0010309278350515464 x 100 = -0.1%