-74.13% is the change from 688 to 178
Calculation steps:
[( 178 - 688 ) ÷ 688] x 100 = -74.13%
Formula
Percentage change = [(178 - 688) / 688] x 100
Subtract the new number by the original number
178 - 688 = -510
-510 ÷ 688 = -0.7412790697674418
-0.7412790697674418 x 100 = -74.13%