-59.59% is the change from 688 to 278
Calculation steps:
[( 278 - 688 ) ÷ 688] x 100 = -59.59%
Formula
Percentage change = [(278 - 688) / 688] x 100
Subtract the new number by the original number
278 - 688 = -410
-410 ÷ 688 = -0.5959302325581395
-0.5959302325581395 x 100 = -59.59%