-2.35% is the change from 978 to 955
Calculation steps:
[( 955 - 978 ) ÷ 978] x 100 = -2.35%
Formula
Percentage change = [(955 - 978) / 978] x 100
Subtract the new number by the original number
955 - 978 = -23
-23 ÷ 978 = -0.023517382413087935
-0.023517382413087935 x 100 = -2.35%