-63.52% is the change from 677 to 247
Calculation steps:
[( 247 - 677 ) ÷ 677] x 100 = -63.52%
Formula
Percentage change = [(247 - 677) / 677] x 100
Subtract the new number by the original number
247 - 677 = -430
-430 ÷ 677 = -0.6351550960118169
-0.6351550960118169 x 100 = -63.52%