-87.48% is the change from 623 to 78
Calculation steps:
[( 78 - 623 ) ÷ 623] x 100 = -87.48%
Formula
Percentage change = [(78 - 623) / 623] x 100
Subtract the new number by the original number
78 - 623 = -545
-545 ÷ 623 = -0.8747993579454254
-0.8747993579454254 x 100 = -87.48%