-76.64% is the change from 274 to 64
Calculation steps:
[( 64 - 274 ) ÷ 274] x 100 = -76.64%
Formula
Percentage change = [(64 - 274) / 274] x 100
Subtract the new number by the original number
64 - 274 = -210
-210 ÷ 274 = -0.7664233576642335
-0.7664233576642335 x 100 = -76.64%