-6.54% is the change from 917 to 857
Calculation steps:
[( 857 - 917 ) ÷ 917] x 100 = -6.54%
Formula
Percentage change = [(857 - 917) / 917] x 100
Subtract the new number by the original number
857 - 917 = -60
-60 ÷ 917 = -0.06543075245365322
-0.06543075245365322 x 100 = -6.54%