-77.62% is the change from 688 to 154
Calculation steps:
[( 154 - 688 ) ÷ 688] x 100 = -77.62%
Formula
Percentage change = [(154 - 688) / 688] x 100
Subtract the new number by the original number
154 - 688 = -534
-534 ÷ 688 = -0.7761627906976745
-0.7761627906976745 x 100 = -77.62%