-63.5% is the change from 274 to 100
Calculation steps:
[( 100 - 274 ) ÷ 274] x 100 = -63.5%
Formula
Percentage change = [(100 - 274) / 274] x 100
Subtract the new number by the original number
100 - 274 = -174
-174 ÷ 274 = -0.635036496350365
-0.635036496350365 x 100 = -63.5%