-1.71% is the change from 995 to 978
Calculation steps:
[( 978 - 995 ) ÷ 995] x 100 = -1.71%
Formula
Percentage change = [(978 - 995) / 995] x 100
Subtract the new number by the original number
978 - 995 = -17
-17 ÷ 995 = -0.017085427135678392
-0.017085427135678392 x 100 = -1.71%