-27.45% is the change from 889 to 645
Calculation steps:
[( 645 - 889 ) ÷ 889] x 100 = -27.45%
Formula
Percentage change = [(645 - 889) / 889] x 100
Subtract the new number by the original number
645 - 889 = -244
-244 ÷ 889 = -0.2744656917885264
-0.2744656917885264 x 100 = -27.45%