-77.25% is the change from 668 to 152
Calculation steps:
[( 152 - 668 ) ÷ 668] x 100 = -77.25%
Formula
Percentage change = [(152 - 668) / 668] x 100
Subtract the new number by the original number
152 - 668 = -516
-516 ÷ 668 = -0.7724550898203593
-0.7724550898203593 x 100 = -77.25%