-77.19% is the change from 662 to 151
Calculation steps:
[( 151 - 662 ) ÷ 662] x 100 = -77.19%
Formula
Percentage change = [(151 - 662) / 662] x 100
Subtract the new number by the original number
151 - 662 = -511
-511 ÷ 662 = -0.7719033232628398
-0.7719033232628398 x 100 = -77.19%